US3884891A
Expired / Lapsed
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Method for preparing branched copolymers by ethylene with unsaturated silicone monomers
Assignee: Individual
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Filing: 1972-07-17
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Granted: 1975-05-20
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Expires: 1992-07-17
Abstract
Abstract Branched copolymers of ethylene with unsaturated silicone monomers, useful as water-repellent coatings, having the general formula R1CH CHSiRm2Rn3(OR4)p, wherein R1 is H or an aliphatic radical having the number of carbon atoms from 1 to 3; R2 is a saturated aliphatic radical with from 1 to 4 carbon atoms; R3 is phenyl; R4 is a saturated aliphatic radical having from 1 to 10 carbon atoms or an aryl having no more than 2 aromatic rings; m is from 0 to 2, when R1 H, and from 1 to 3, when R1 is a saturated aliphatic radical; n is from 0 to 3; p is from 0 to 2; and m + n + p 3; can be prepared by copolymerization of ethylene with unsaturated silicone monomers of the above formula, wherein the reaction mixture contains from 0.5 to 85 molar per cent of the silicone monomer, at pressures from 150 to 3500 atm and temperatures of from 40* to 300* C in the presence of freeradical polymerization.
Inventors
- 👤 Sergei Mikhailovich Samoilov
- 👤 Viktor Nikolaevich Monastyrsky
- 👤 Svetlana Tikhonovna Pudovik
- 👤 Evgeny Vasilievich Kuznetsov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:09
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/02
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
121 words
BRANCHED COPOLYMERS CONSISTING ESSENTIALLY OF ETHYLENE AND 0.2-40 MOL PERCENT UNSATURATED SILICON MONOMERS HAVING THE FORMULA R1CH=CHSIRM2RN3(OR4)P, WHERE R1 IS SELECTED FROM THE GROUP CONSISTING OF H AND SATURATED C1-C20 ALIPHATIC RADICALS; R2 IS A C1-C20 SATURATED ALIPHATIC RADICAL; R IS PHENYL; R4 IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF C1-C20 SATURATED ALIPHATIC RADICALS AND ARYL RADICALS HAVING NO MORE THAN TWO AROMATIC RINGS; M IS FROM 0 TO 2, WHEN R1 IS H, AND FROM 1 TO 3 WHEN R1 IS A SATURATED ALIPHATIC RADICAL, N IS FROM 0 TO 3; P IS FROM 0 TO 2; AND M + N + P = 3; SAID COPOLYMERS CONTAINING LINKS EXPRESSED BY THE FORMULA ( -CH2-CH2-) AND (-R1CH- CHSIRM2RN3(OR4)P-).
Claim 2
Dependent Claim
121 words
BRANCHED COPOLYMERS CONSISTING ESSENTIALLY OF ETHYLENE AND 0.2-40 MOL PERCENT UNSATURATED SILICON MONOMERS HAVING THE FORMULA R1CH=CHSIRM2RN3(OR4)P, WHERE R1 IS SELECTED FROM THE GROUP CONSISTING OF H AND SATURATED C1-C20 ALIPHATIC RADICALS; R2 IS A C1-C20 SATURATED ALIPHATIC RADICAL; R IS PHENYL; R4 IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF C1-C20 SATURATED ALIPHATIC RADICALS AND ARYL RADICALS HAVING NO MORE THAN TWO AROMATIC RINGS; M IS FROM 0 TO 2, WHEN R1 IS H, AND FROM 1 TO 3 WHEN R1 IS A SATURATED ALIPHATIC RADICAL, N IS FROM 0 TO 3; P IS FROM 0 TO 2; AND M + N + P = 3; SAID COPOLYMERS CONTAINING LINKS EXPRESSED BY THE FORMULA ( -CH2-CH2-) AND (-R1CH- CHSIRM2RN3(OR4)P-).
Claim 3
Dependent Claim
15 words
Branched copolymers of ethylene according to claim 1 wherein R1 is a C1-C3 aliphatic radical.
Claim 4
Dependent Claim
16 words
Branched copolymers of ethylene according to claim 1 wherein R2 is a saturated C1-C4 aliphatic radical.
Claim 5
Dependent Claim
27 words
Branched copolymers of ethylene according to claim 1 wherein R4 is selected from the group consisting of a C1-C10 aliphatic radical, naphthyl, xylyl, phenyl, and diphenyl radicals.
Claim 6
Dependent Claim
23 words
Branched copolymers of ethylene according to claim 1 wherein the copolymer contains from 1 to 15 molar per cent of the (-R1CH-CHSiRm2Rn3(OR4)p-) links.
Claim 7
Dependent Claim
31 words
Branched copolymers of ethylene according to claim 1 wherein the monomer has the formula CH2 CHSiCH3(OC2H5)2 and the copolymer contains from 2 to 12 molar per cent of the (-CH2-CHSiCH3(OC2H5)2-) links.
Claim 8
Dependent Claim
31 words
Branched copolymers of ethylene according to claim 1 wherein the monomer has the formula CH2 CHSi(C6H5)3 and the copolymer contains from 1 to 10 molar per cent of the (-CH2-CHSi(C6H5)3-) links.
Claim 9
Dependent Claim
146 words
A method for preparing branched copolymers of ethylene with unsaturated silicone monomers according to claim 1 comprising copolymerizing a reaction mixture of ethylene with unsaturated silicone monomers having the formula R1CH CHSi Rm2Rn3(OR4)p where R1 is a radical selected from the group consisting of H and saturated C1-C20 aliphatic radicals; R2 is a saturated C1-C20 aliphatic radical; R3 is phenyl; R4 is a radical selected from the group consisting of saturated C1-C20 aliphatic radicals and aryl radicals having no more than two aromatic rings; m is from 0 to 2, when R1 H, and from 1 to 3, when R1 is a saturated aliphatic radical; n is from 0 to 3; p is from 0 to 2; m + n + p 3; at pressures of from 150 to 3500 atm and temperatures of from 40* to 300*C in the presence of a free-radical polymerization initiator.
Claim 10
Dependent Claim
26 words
A method according to claim 8, wherein the copolymerization of ethylene with unsaturated silicone monomers is carried out at pressures of from 500 to 2500 atm.
Claim 11
Dependent Claim
25 words
A method according to claim 8, wherein the copolymerization of ethylene with unsaturated silicone monomers is carried out at temperatures of from 140* to 250*C.
Claim 12
Dependent Claim
34 words
A method according to claim 8, wherein the copolymerization of ethylene with silicone monomers is carried out in a reaction mixture containing from 0.5 to 85 molar per cent of the unsaturated silicone monomer.
Claim 13
Dependent Claim
33 words
A method according to claim 8, wherein a compound selected from the group consisting of di-tert.-butyl peroxide, di-tert.-butyl benzoate, lauryl peroxide, benzoyl peroxide, and cumene hydroperoxide is used as the free-radical polymerization initiator.
Claim 14
Independent Claim
170 words
A method for preparing water-repellent materials, comprising applying to said materials a solution comprising an organic solvent selected from the group consisting of benzene, Xylene, toluene, trichloroethylene, dichloroethane, and chlorobenzene and 15 per cent by weight of said solution of a branched copolymer consisting essentially of ethylene with 0.2-40 mole per cent of an unsaturated silicon monomer having the formula R1CH CHSiRm2Rn3(OR4)p, where R1 is selected from the group consisting of H and saturated C1-C20 aliphatic radicals; R2 is a C1-C20 saturated aliphatic radical; R3 is phenyl; R4 is a radical selected from the group consisting of C1-C20 saturated aliphatic radicals and aryl radicals having no more than two aromatic rings; m is from 0 to 2, when R1 is H, and from 1 to 3 when R1 is a saturated aliphatic radical; n is from 0 to 3; p is from 0 to 2; and m + n + p 3, said copolymers containing links expressed by the formulae (-CH2-CH2-) and (-R1CH-CHSiRm2Rn3(OR4)p-); and evaporating the solvent from said solution.
Claim 15
Independent Claim
170 words
A method for preparing water-repellent materials, comprising applying to said materials a solution comprising an organic solvent selected from the group consisting of benzene, Xylene, toluene, trichloroethylene, dichloroethane, and chlorobenzene and 15 per cent by weight of said solution of a branched copolymer consisting essentially of ethylene with 0.2-40 mole per cent of an unsaturated silicon monomer having the formula R1CH CHSiRm2Rn3(OR4)p, where R1 is selected from the group consisting of H and saturated C1-C20 aliphatic radicals; R2 is a C1-C20 saturated aliphatic radical; R3 is phenyl; R4 is a radical selected from the group consisting of C1-C20 saturated aliphatic radicals and aryl radicals having no more than two aromatic rings; m is from 0 to 2, when R1 is H, and from 1 to 3 when R1 is a saturated aliphatic radical; n is from 0 to 3; p is from 0 to 2; and m + n + p 3, said copolymers containing links expressed by the formulae (-CH2-CH2-) and (-R1CH-CHSiRm2Rn3(OR4)p-); and evaporating the solvent from said solution.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |