Conformable bandage and coating material

Claim 2

A liquid polymer-containing bandage material comprising from 1 to 40 wt. % siloxane containing polymer, 59.9 to 98.9 wt. % volatile polydimethylsiloxane liquid, and 0.1 to 10 wt% polar liquid; said bandage material being substantially non stinging and film forming at room temperature to form an adherent comformable moisture vapor permeable bandage directly on a user.

Claim 3

A liquid polymer-containing bandage material in accordance with claim 1 wherein said siloxane containing polymer comprises at least one vinyl containing alkylsiloxysilane monomer being present in a mole fraction of 1.0 to about 0.15 and having the following structure: CH.sub.2 =C(R.sup.1)COOR.sup.2 SiR.sup.3 R.sup.4 R.sup.5 Where R 1 =H, CH 3 , or CH 2 COOR', Where R 2 =alkyl (C 1 -C 4 ), aryl, or CH 2 CH(OH)CH 2 , Where R 3 , R 4 , R 5 =OSi(Y) 3 , or alkyl (C 1 -C 6 ), Wherein, at least one of R 3 , R 4 , R 5 =OSi(Y) 3 Where Y=alkyl (C 1 -C 6 ) OSi(Z) 3 or R.sup.2 OOC(R.sup.1)C=CH.sub.2 Where Z=alkyl (C 1 -C 6 ), and Where R'=R 2 SiR 3 R 4 R 5 .

Claim 4

A liquid polymer containing bandage material according to claim 2 wherein said siloxane-containing polymer comprises an addition polymerizable comonomer being present in a mole fraction of up to about 0.85 and is selected from the group consisting of methyl acrylate, methyl methacrylate, tetrahydrofurfuryl acrylate, tetrahydrofurfuryl methacrylate, cyclohexyl acrylate, cyclohexyl methacrylate, n-lauryl acrylate, n-lauryl methacrylate, 2-phenoxyethyl acrylate, 2-phenoxyethly methacrylate, 2-phenylethyl acrylate, 2-phenylethyl methacrylate, n-tridecyl acrylate, n tridecyl methacrylate, isodecyl acrylate, isodecyl methacrylate, isooctyl acrylate, isooctyl methacrylate, isobornyl acrylate, isobornyl methacrylate, benzyl acrylate, benzyl methacrylate, 2-butoxyethyl acrylate, 2-butoxyethyl methacrylate, n-butyl acrylate, n-butyl methacrylate, ethyl acrylate, ethyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, furfuryl acrylate. furfuryl methacrylate, n-hexyl acrylate, n-hexyl methacrylate, octadecyl acrylate, octadecyl methacrylate, isobutyl acrylate, isobutyl methacrylate, isopropyl acrylate, isopropyl methacrylate, d-methyl styrene, styrene, p-t-butyl styrene, 4-methoxystyrene, vinyl benzoate, vinyl naphthalene, hexafluoroisorpoyl methacrylate, fluorinated itaconates and admixtures thereof.

Claim 5

A liquid polymer-containing bandage material according to claim 2 wherein said vinyl-containing alkylsiloxysilane monomer is 3-methacryloyloxypropyltris(trimethylsiloxy)silane.

Claim 6

A liquid polymer-containing bandage material according to claim 3 wherein said addition polymerizable comonomer is a member selected from the group consisting of methyl methacrylate, ethyl methacrylate and admixtures thereof.

Claim 7

A liquid polymer containing bandage material according to claim 5 wherein 3-methacryloyloxypropyltris(trimethylsiloxy)silane is present in a mole fraction of about 0.2 to 0.4, methyl methacrylate is present in a mole fraction of about 0.3 to 0.4, and ethyl methacrylate is present in a mole fraction of about 0.3 to 0.4.

Claim 8

A liquid polymer-containing bandage material according to claim 1 wherein said volatile polydimethylsiloxane has a solubility parameter of about 7 (cal/cm 31/2 ) and is selected from the group consisting of hexamethyl disiloxane, octamethyl cyclotetrasiloxane, decamethyl cyclopentasiloxane, octamethyl trisiloxane and admixtures thereof.

Claim 9

A liquid polymer containing bandage material according to claim 7 wherein said volatile polydimethylsiloxane is a mixture of hexamethyl disiloxane and octamethyl cyclotetrasiloxane.

Claim 10

A liquid polymer containing bandage material according to claim 1 wherein said polar liquids have solubility parameters of greater than 9 (cal/cm 31/2 ).

Claim 11

A liquid polymer-containing bandage material according to claim 9 wherein said polar liquid has a solubility parameter of greater than or equal to 11.0 (cal/cm 31/2 ) and is selected from the group consisting of ethanol, 95% ethanol 5% water isopropanol, propanol, diethylene glycol, propylene glycol, triethylene glycol, N-methyl pyrrolidone, glycerol, and admixtures thereof.

Claim 12

A liquid polymer-containing bandage material according to claim 10 wherein said polar liquid is 95% ethanol.

Claim 13

A liquid polymer-containing bandage material according to claim 6 comprising of about 10 to 25 wt% said siloxane-containing polymer, about 0.5 to 5.0 wt% octamethyl cyclotetrasiloxane, about 0.5 to 5.0 wt% 95% ethanol 5% water, and about 65 to 89 wt% hexamethyl disiloxane; and having a moisture vapor permeability of from 200 to 700 g/m 2 /24 hr and an oxygen permeability of 60 to 180×10 -11 (cm 2 /sec) (ml O 2 / ml mm Hg).

Claim 14

A liquid polymer-containing bandage material according to claim 1 comprising about 10 to 25 wt% said siloxane-containing polymer, about 0.5 to 5.0 wt% octamethyl cyclototrasiloxane, about 0.5 to 5.0 wt% 95% ethanol 5% water, about 0.5 to 5.0 wt% sucrose acetate isobutyrate, and about 60 to 88.5 wt% hexamethyl disiloxane; and having a moisture vapor permeability of from 200 to 700 g/m 2 24hr and an oxygen permeability of 60 to 180×10 -11 (cm 2 /sec) (ml O 2 /ml mm Hg).

Claim 15

A liquid polymer-containing bandage material according to claim 1 which is formed into a dried film form.

Claim 16

A liquid polymer-containing bandage material according to claim 12 which is formed into a dried film form.

Claim 17

A liquid polymer-containing bandage material according to claim 13 which is formed into a dried film form.

Claim 20

A liquid polymer containing coating material comprising from 1 to 40 wt. % siloxane-containing polymer, 60 to 99 wt. % volatile polydimethylsiloxane, said coating material being substantially non-stinging, quick-drying and film forming at room temperature to form an adherent comformable moisture vapor permeable coating directly on a surface.

Claim 21

A liquid polymer containing coating material comprising from 1 to 40 wt. % siloxane-containing polymer, 60 to 99 wt. % volatile polydimethylsiloxane, said coating material being substantially non-stinging, quick-drying and film forming at room temperature to form an adherent comformable moisture vapor permeable coating directly on a surface.

Claim 22

A liquid polymer-containing coating material in accordance with claim 18, and further comprising from about 0.1 to about 10% wt. % of a polar liquid.

Claim 23

A liquid polymer containing coating material in accordance with claim 18 in the form of a polymerized coating adherent to a body surface.

Claim 24

A liquid polymer-containing coating material in accordance with claim 20 in the form of a polymerized coating carrying an active agent therein for release to an underlying surface

Claim 25

A liquid polymer-containing coating material in accordance with claim 1 in the form of a polymerized coating adherent to a body surface.

Claim 26

A liquid polymer containing coating material in accordance with claim 22 in the form of a polymerized coating carrying an active agent therein for release to an underlying surface.