US6323277B1 — Bridged silicone oligomers and curable compositio…

Claim 1

Independent Claim 241 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 , —OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10.

Claim 2

Dependent Claim 241 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 , —OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10.

Claim 3

Dependent Claim 55 words

A composition as in claim 1 wherein B is a group of the formula: —C f H 2f —SiR 1 g(X) 3−g where f is 2 to 12, g is 0 to 2, X is a hydrolyzable group, and R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms.

Claim 4

Dependent Claim 211 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 , —OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is methyl; each R 2 is acetyl, methyl, ethyl, octyl, dodecyl or a mixture thereof; and each R 3 is vinyl, acryloxypropyl, methacryloxypropyl or a mixture thereof, and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; and m+n+o+p<30.

Claim 5

Dependent Claim 211 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 , —OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is methyl; each R 2 is acetyl, methyl, ethyl, octyl, dodecyl or a mixture thereof; and each R 3 is vinyl, acryloxypropyl, methacryloxypropyl or a mixture thereof, and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; and m+n+o+p<30.

Claim 6

Dependent Claim 222 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 , —OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is methyl; each R 2 is acetyl, methyl, ethyl, octyl, dodecyl or a mixture thereof; and each R 3 is vinyl, acryloxypropyl, methacryloxypropyl or a mixture thereof, and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 4; n=1 to 15; o=0 to 2; and p=0 to 1.

Claim 7

Dependent Claim 222 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 , —OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is methyl; each R 2 is acetyl, methyl, ethyl, octyl, dodecyl or a mixture thereof; and each R 3 is vinyl, acryloxypropyl, methacryloxypropyl or a mixture thereof, and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 4; n=1 to 15; o=0 to 2; and p=0 to 1.

Claim 8

Dependent Claim 315 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 , —OR 2 , R 3 and R 4 ; B is —C 2 H 4 Si(OCH 3 ) 3 , —C 2 H 4 Si(OC 2 H 5 ) 3 ; —C 2 H 4 Si(OCH 3 ) 2 (CH 3 ), —C 2 H 4 Si(OCH 3 ) 2 Cl, —C 2 H 4 (C 6 H 9 )(C 2 H 4 Si(OCH 3 ) 3 ) 2 , —C 2 H 4 (C 5 H 8 )C 2 H 4 Si(OC 2 H 5 ) 3 , or —C 2 H 4 Si(OCH 3 ) 2 (OSi(OCH 3 ) 3 ); each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10.

Claim 9

Dependent Claim 315 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 , —OR 2 , R 3 and R 4 ; B is —C 2 H 4 Si(OCH 3 ) 3 , —C 2 H 4 Si(OC 2 H 5 ) 3 ; —C 2 H 4 Si(OCH 3 ) 2 (CH 3 ), —C 2 H 4 Si(OCH 3 ) 2 Cl, —C 2 H 4 (C 6 H 9 )(C 2 H 4 Si(OCH 3 ) 3 ) 2 , —C 2 H 4 (C 5 H 8 )C 2 H 4 Si(OC 2 H 5 ) 3 , or —C 2 H 4 Si(OCH 3 ) 2 (OSi(OCH 3 ) 3 ); each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10.

Claim 10

Dependent Claim 244 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 ,—OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10; and a free-radical catalyst.

Claim 11

Dependent Claim 244 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 ,—OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10; and a free-radical catalyst.

Claim 12

Dependent Claim 31 words

A composition as in claim 6 wherein said free-radical catalyst is selected from the group consisting of organic peroxides, azonitrile compounds, sulfur, metal drier compounds, and free-radical photoinitiators, and mixtures thereof.

Claim 13

Dependent Claim 12 words

A composition as in claim 6 further comprising an ethylenically unsaturated monomer.

Claim 14

Dependent Claim 250 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 , —OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10; a radically curable organic polymer; and an inorganic filler.

Claim 15

Dependent Claim 250 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 , —OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10; a radically curable organic polymer; and an inorganic filler.

Claim 16

Dependent Claim 285 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 , —OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10; a radically curable organic polymer selected from the group consisting of natural rubber, styrene-butadiene rubber, ethylene-propylene copolymers, polyethylene, ethylene-vinyl acetate copolymers, ethylene-propylene terpolymer rubbers in which the third monomeric component is ethylidene norbornene or 1,4-hexadiene, urethane rubbers, and polyisobutadiene rubbers; and an inorganic filler.

Claim 17

Dependent Claim 285 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 , —OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10; a radically curable organic polymer selected from the group consisting of natural rubber, styrene-butadiene rubber, ethylene-propylene copolymers, polyethylene, ethylene-vinyl acetate copolymers, ethylene-propylene terpolymer rubbers in which the third monomeric component is ethylidene norbornene or 1,4-hexadiene, urethane rubbers, and polyisobutadiene rubbers; and an inorganic filler.

Claim 18

Dependent Claim 299 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 ,—OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10; a radically curable organic polymer; and an inorganic filler selected from the group consisting of asbestos, ground glass, kaolin and other clay minerals, silica, calcium silicate, calcium carbonate (whiting), magnesium oxide, barium carbonate, barium sulfate (barytes), metal fibers and powders, glass fibers, refractory fibers, titanium dioxide, mica, talc, chopped glass, alumina, aluminatrihydrate, quartz, calcium silicate, and inorganic coloring pigments.

Claim 19

Dependent Claim 299 words

A free radically curable composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 ,—OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10; a radically curable organic polymer; and an inorganic filler selected from the group consisting of asbestos, ground glass, kaolin and other clay minerals, silica, calcium silicate, calcium carbonate (whiting), magnesium oxide, barium carbonate, barium sulfate (barytes), metal fibers and powders, glass fibers, refractory fibers, titanium dioxide, mica, talc, chopped glass, alumina, aluminatrihydrate, quartz, calcium silicate, and inorganic coloring pigments.

Claim 20

Dependent Claim 234 words

An oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 ,—OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10.

Claim 21

Dependent Claim 234 words

An oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 ,—OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10.

Claim 22

Dependent Claim 25 words

An oligomer as in claim 12 wherein the oligomer includes at least one R 3 group selected from the group consisting of acrylate and methacrylate.

Claim 23

Dependent Claim 25 words

An oligomer as in claim 12 wherein at least some of the R 2 groups are selected from the group consisting of octyl and dodecyl.

Claim 24

Dependent Claim 28 words

An oligomer as in claim 12 wherein m is 2 to 4, n is 1 to 15, o is 0 to 2 and p is 0 to 1.

Claim 25

Dependent Claim 55 words

An oligomer as in claim 12 wherein B is a group of the formula: —C f H 2f —SiR 1 g(X) 3−g where f is 2 to 12, g is 0 to 2, X is a hydrolyzable group, and R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms.

Claim 26

Dependent Claim 107 words

An oligomer as in claim 12 wherein B is selected from the group consisting of —C 2 H 4 Si(OCH 3 ) 3 ; —C 2 H 4 Si(OC 2 H 5 ) 3 ; —C 2 H 4 Si(OCH 3 ) 2 (CH 3 ); —C 2 H 4 Si(OCH 3 ) 2 Cl; —C 2 H 4 (C 6 H 9 )(C 2 H 4 Si(OCH 3 ) 3 ) 2 ; —C 2 H 4 (C 5 H 8 )C 2 H 4 Si(OC 2 H 5 ) 3 ; and —C 2 H 4 Si(OCH 3 ) 2 (OSi(OCH 3 ) 3 ).

Claim 27

Dependent Claim 30 words

An oligomer as in claim 12 selected from the group consisting of: wherein a, b and c are respectively positive integers the sum of which is from 2 to 20.

Claim 28

Dependent Claim 30 words

An oligomer selected from the group consisting of: wherein a, b and c are respectively positive integers the sum of which is from 2 to 20 and u is 1-8.

Claim 29

Dependent Claim 30 words

An oligomer selected from the group consisting of: wherein a, b and c are respectively positive integers the sum of which is from 2 to 20 and u is 1-8.

Claim 30

Dependent Claim 255 words

An article, at least a portion of, which comprises a cured composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 ,—OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10; a radically curable organic polymer; and an inorganic filler.

Claim 31

Dependent Claim 255 words

An article, at least a portion of, which comprises a cured composition comprising an oligomer of the formula: (R 3 SiO ½ ) m (O ½ SiR 2 O ½ ) n (SiO {fraction (3/2)} R) o (SiO {fraction (4/2)} ) p (I) wherein each R is selected individually from the group consisting of B, R 1 ,—OR 2 , R 3 and R 4 ; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R 1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R 2 is independently a group as defined for R 1 or an acyl group; and each R 3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R 4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by a Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfide, blocked mercaptan, amide, cyano or oximato groups; with the provisos that at least one R is a B, at least one quarter of all R groups are —OR 2 , and at least one silicon atom of the oligomer has an R 3 group thereon; m=2 to 10; n=0 to 20; o=0 to 20; and p=0 to 10; a radically curable organic polymer; and an inorganic filler.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2004-11-26	2005-05-28	2005-11-27	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2008-11-26	2009-05-28	2009-11-27	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2012-11-26	2013-05-28	2013-11-27	$7700.00	Window Closed / Lapsed

Bridged silicone oligomers and curable compositions containing same

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