US4355131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesion of rubber to glass fibers
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1981-12-17
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Granted: 1982-10-19
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Expires: 2001-12-17
Abstract
Abstract An aqueous alkaline dispersion of a rubbery graft or over polymerized copolymer of a diene and a vinyl pyridine on a polyacrylate seed (core or substrate), said acrylate polymer having a Tg of not above about -20 DEG C., desirably also containing a polybutadiene, and a water soluble, heat reactable phenolic resin, in certain amounts is useful in forming an adhesive for bonding glass fiber reinforcing elements or cords to rubber compounds or stocks. After dipping the glass fiber cord in the one-step adhesive dip, the coated cord is heated to dry it and heat cure or heat set the adhesive on the cord. Thereafter, the adhesive containing glass fiber cord is combined or laminated (calendered) with a curable rubber compound and the resulting assembly is cured to form a composite in which the glass fiber cord is bonded to the rubber by means of said adhesive.
Inventors
- 👤 Richard M. Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:10
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J5/08; C08F; C08F265/00; C08F265/04; C09; C09J; C09J151/00; C09J151/003; C08J2321/00; Y; Y10; Y10S; Y10S525/00; Y10S525/902; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
130 words
A rubbery graft copolymer of a seed of (1) a polymer of an acrylate monomer, said polymer having a glass transition temperature of not above about -20° C., said polymer optionally additionally containing copolymerized with said acrylate monomer a very minor amount by weight of a crosslinking polyunsaturated monomer, and a shell of (2) a copolymer of a vinyl pyridine monomer having from 7 to 9 carbon atoms and a conjugated diene monomer having from 4 to 6 carbon atoms, wherein in said graft copolymer the total amount of said monomers forming said graft copolymer is from about 8 to 20% by weight of said acrylate monomer, from 3 to 20% by weight of said vinyl pyridine monomer and from 60 to 89% by weight of said conjugated diene monomer.
Claim 2
Dependent Claim
130 words
A rubbery graft copolymer of a seed of (1) a polymer of an acrylate monomer, said polymer having a glass transition temperature of not above about -20° C., said polymer optionally additionally containing copolymerized with said acrylate monomer a very minor amount by weight of a crosslinking polyunsaturated monomer, and a shell of (2) a copolymer of a vinyl pyridine monomer having from 7 to 9 carbon atoms and a conjugated diene monomer having from 4 to 6 carbon atoms, wherein in said graft copolymer the total amount of said monomers forming said graft copolymer is from about 8 to 20% by weight of said acrylate monomer, from 3 to 20% by weight of said vinyl pyridine monomer and from 60 to 89% by weight of said conjugated diene monomer.
Claim 3
Dependent Claim
86 words
A rubbery graft copolymer according to claim 1 wherein in said graft copolymer the total amount of said monomers forming said graft copolymer is from about 10 to 15% by weight of said acrylate monomer, from 7 to 15% by weight of said vinyl pyridine monomer and from 70 to 83% by weight of said conjugated diene monomer, said optional crosslinking polyunsaturated monomer being used in an amount of from about 0.05 to 1.5 parts by weight per 100 parts by weight of said acrylate monomer.
Claim 4
Dependent Claim
48 words
A rubbery graft copolymer according to claim 2 in which said acrylate monomer is selected from the group consisting of n-butyl acrylate and 2-ethyl hexyl acrylate and mixture thereof, said vinyl pyridine monomer is 2-vinyl pyridine, said conjugated diene is butadiene-1,3 and said polyunsaturated monomer is divinyl benzene.
Claim 5
Dependent Claim
45 words
A rubbery graft copolymer according to claim 1 containing additionally mixed with said graft copolymer a rubbery polybutadiene having a Tg of not above about -70° C., the % by weight ratio of the graft copolymer to the polybutadiene being from about 20:80 to 60:40.
Claim 6
Dependent Claim
45 words
A rubbery graft copolymer according to claim 2 containing additionally mixed with said graft copolymer a rubbery polybutadiene having a Tg of not above about -70° C., the % by weight ratio of the graft copolymer to the polybutadiene being from about 20:80 to 60:40.
Claim 7
Dependent Claim
44 words
A rubbery graft copolymer according to claim 3 containing additionally mixed with said graft copolymer a rubbery polybutadiene having a Tg of not above about -70° C., the % by weight of the graft copolymer being about 40 and of the polybutadiene being 60.
Claim 8
Dependent Claim
143 words
An alkaline latex of about 25 to 60% by weight of solids of a rubbery graft copolymer of a seed of (1) a polymer of an acrylate monomer, said polymer having a glass transition temperature of not above about -20° C., said polymer optionally additionally containing copolymerized with said acrylate monomer a very minor amount by weight of a crosslinking polyunsaturated monomer, and a shell of (2) a copolymer of a vinyl pyridine monomer having from 7 to 9 carbon atoms and a conjugated diene monomer having from 4 to 6 carbon atoms, wherein in said graft copolymer the total amount of said monomers forming said graft copolymer is from about 8 to 20% by weight of said acrylate monomer, from 3 to 20% by weight of said vinyl pyridine monomer and from 60 to 89% by weight of said conjugated diene monomer.
Claim 9
Dependent Claim
143 words
An alkaline latex of about 25 to 60% by weight of solids of a rubbery graft copolymer of a seed of (1) a polymer of an acrylate monomer, said polymer having a glass transition temperature of not above about -20° C., said polymer optionally additionally containing copolymerized with said acrylate monomer a very minor amount by weight of a crosslinking polyunsaturated monomer, and a shell of (2) a copolymer of a vinyl pyridine monomer having from 7 to 9 carbon atoms and a conjugated diene monomer having from 4 to 6 carbon atoms, wherein in said graft copolymer the total amount of said monomers forming said graft copolymer is from about 8 to 20% by weight of said acrylate monomer, from 3 to 20% by weight of said vinyl pyridine monomer and from 60 to 89% by weight of said conjugated diene monomer.
Claim 10
Dependent Claim
85 words
An alkaline latex according to claim 7 wherein in said graft copolymer the total amount of said monomers forming said graft copolymer is from about 10 to 15% by weight of said acrylate monomer, from 7 to 15% by weight of said vinyl pyridine monomer and from 70 to 83% by weight of said conjugated diene monomer, said optional crosslinking polyunsaturated monomer being used in an amount of from about 0.05 to 1.5 parts by weight per 100 parts by weight of said acrylate monomer.
Claim 11
Dependent Claim
47 words
An alkaline latex according to claim 8 in which said acrylate monomer is selected from the group consisting of n-butyl acrylate and 2-ethyl hexylacrylate and mixture thereof, said vinyl pyridine monomer is 2-vinyl pyridine and said conjugated diene is butadiene-1,3 and said polyunsaturated monomer is divinyl benzene.
Claim 12
Dependent Claim
48 words
An alkaline latex according to claim 7 containing additionally mixed with said graft copolymer a rubbery polybutadiene having a Tg of not above about -70° C., the % by weight ratio on a dry basis of the graft copolymer to the polybutadiene being from about 20:80 to 60:40.
Claim 13
Dependent Claim
48 words
An alkaline latex according to claim 8 containing additionally mixed with said graft copolymer a rubbery polybutadiene having a Tg of not above about -70° C., the % by weight ratio on a dry basis of the graft copolymer to the polybutadiene being from about 20:80 to 60:40.
Claim 14
Dependent Claim
47 words
An alkaline latex according to claim 9 containing additionally mixed with said graft copolymer a rubbery polybutadiene having a Tg of not above about -70° C., the % by weight on a dry basis of the graft copolymer being about 40 and of the polybutadiene being 60.
Claim 15
Dependent Claim
175 words
A composition of matter comprising an aqueous alkaline dispersion of from about 30 to 50% by weight of solids comprising on a dry weight basis 100 parts by weight of a rubbery graft copolymer of a seed of (1) a polymer of an acrylate monomer, said polymer having a glass transition temperature of not above about -20° C., said polymer optionally additionally containing copolymerized with said acrylate monomer a very minor amount by weight of a crosslinking polyunsaturated monomer, and a shell of (2) a copolymer of a vinyl pyridine monomer having from 7 to 9 carbon atoms and a conjugated diene monomer having from 4 to 6 carbon atoms, wherein in said graft copolymer the total amount of said monomers forming said graft copolymer is from about 8 to 20% by weight of said acrylate monomer, from 3 to 20% by weight of said vinyl pyridine monomer and from 60 to 89% by weight of said conjugated diene monomer and about 3 to 15 parts by weight of a water soluble thermosetting phenolic-aldehyde resin.
Claim 16
Dependent Claim
175 words
A composition of matter comprising an aqueous alkaline dispersion of from about 30 to 50% by weight of solids comprising on a dry weight basis 100 parts by weight of a rubbery graft copolymer of a seed of (1) a polymer of an acrylate monomer, said polymer having a glass transition temperature of not above about -20° C., said polymer optionally additionally containing copolymerized with said acrylate monomer a very minor amount by weight of a crosslinking polyunsaturated monomer, and a shell of (2) a copolymer of a vinyl pyridine monomer having from 7 to 9 carbon atoms and a conjugated diene monomer having from 4 to 6 carbon atoms, wherein in said graft copolymer the total amount of said monomers forming said graft copolymer is from about 8 to 20% by weight of said acrylate monomer, from 3 to 20% by weight of said vinyl pyridine monomer and from 60 to 89% by weight of said conjugated diene monomer and about 3 to 15 parts by weight of a water soluble thermosetting phenolic-aldehyde resin.
Claim 17
Dependent Claim
117 words
A composition of matter according to claim 13 wherein the solids content is from about 35 to 45% by weight, wherein in said graft copolymer the total amount of said monomers forming said graft copolymer is from about 10 to 15% by weight of said acrylate monomer, from 7 to 15% by weight of said vinyl pyridine monomer and from 70 to 83% by weight of said conjugated diene monomer, said optional crosslinking polyunsaturated monomer being used in an amount of from about 0.05 to 1.5 parts by weight per 100 parts by weight of said acrylate monomer, and where said phenolic-aldehyde resin is used in an amount of from about 4 to 10 parts by weight.
Claim 18
Dependent Claim
57 words
A composition of matter according to claim 14 in which said acrylate monomer is selected from the group consisting of n-butyl acrylate and 2-ethyl hexyl acrylate and mixture thereof, said vinyl pyridine monomer is 2-vinyl pyridine, said conjugated diene is butadiene-1,3 and said polyunsaturated monomer is divinyl benzene, and wherein said phenolic-aldehyde resin is a resorcinol-formaldehyde resin.
Claim 19
Dependent Claim
63 words
A composition of matter according to claim 13 containing additionally mixed with said graft copolymer and said resin a rubbery polybutadiene having a Tg of not above about -70° C., the % by weight ratio on a dry basis of the graft copolymer to the polybutadiene being from about 20:80 to 60:40, the total amount of said polymers being 100 parts by weight.
Claim 20
Dependent Claim
63 words
A composition of matter according to claim 14 containing additionally mixed with said graft copolymer and said resin a rubbery polybutadiene having a Tg of not above about -70° C., the % by weight ratio on a dry basis of the graft copolymer to the polybutadiene being from about 20:80 to 60:40, the total amount of said polymers being 100 parts by weight.
Claim 21
Dependent Claim
62 words
A composition of matter according to claim 15 containing additionally mixed with said graft copolymer and said resin a rubbery polybutadiene having a Tg of not above about -70° C., the % by weight on a dry basis of the graft copolymer being about 40 and of the polybutadiene being 60, the total amount of said polymers being 100 parts by weight.
Claim 22
Independent Claim
154 words
The method which comprises aqueous emulsion free radical polymerizing an acrylate monomer to provide a polyacrylate having a glass transition temperature of not above about -20° C., said acrylate monomer optionally additionally containing a very minor amount by weight of a crosslinking polyunsaturated monomer for copolymerization with said acrylate monomer, and then adding to the polymerization media additional surfactant, free radical initiator, water, optionally a modifier, a vinyl pyridine monomer having from 7 to 9 carbon atoms and a conjugated diene monomer having from 4 to 6 carbon atoms to form a graft copolymer of said conjugated diene monomer and said vinyl pyridine monomer with the polyacrylate in which the total amount of said monomers forming the graft copolymer is from about 8 to 20% by weight of said acrylate monomer, from 3 to 20% by weight of said vinyl pyridine monomer and from 60 to 89% by weight of said conjugated diene monomer.
Claim 23
Independent Claim
154 words
The method which comprises aqueous emulsion free radical polymerizing an acrylate monomer to provide a polyacrylate having a glass transition temperature of not above about -20° C., said acrylate monomer optionally additionally containing a very minor amount by weight of a crosslinking polyunsaturated monomer for copolymerization with said acrylate monomer, and then adding to the polymerization media additional surfactant, free radical initiator, water, optionally a modifier, a vinyl pyridine monomer having from 7 to 9 carbon atoms and a conjugated diene monomer having from 4 to 6 carbon atoms to form a graft copolymer of said conjugated diene monomer and said vinyl pyridine monomer with the polyacrylate in which the total amount of said monomers forming the graft copolymer is from about 8 to 20% by weight of said acrylate monomer, from 3 to 20% by weight of said vinyl pyridine monomer and from 60 to 89% by weight of said conjugated diene monomer.
Claim 24
Dependent Claim
84 words
A method according to claim 19 wherein in said graft copolymer the total amount of said monomers forming said graft copolymer is from about 10 to 15% by weight of said acrylate monomer, from 7 to 15% by weight of said vinyl pyridine monomer and from 70 to 83% by weight of said conjugated diene monomer, said optional crosslinking polyunsaturated monomer being used in an amount of from about 0.05 to 1.5 parts by weight per 100 parts by weight of said acrylate monomer.
Claim 25
Dependent Claim
46 words
A method according to claim 20 in which said acrylate monomer is selected from the group consisting of n-butyl acrylate and 2-ethyl hexyl acrylate and mixture thereof, said vinyl pyridine monomer is 2-vinyl pyridine, said conjugated diene is butadiene-1,3 and said polyunsaturated monomer is divinyl benzene.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-18 | 1986-04-19 | 1986-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-18 | 1990-04-19 | 1990-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-18 | 1994-04-19 | 1994-10-19 | $7700.00 | Window Closed / Lapsed |