US4320174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent and translucent vinyl polymeric composite
Assignee: Goodrich Corp
•
Filing: 1980-09-15
•
Granted: 1982-03-16
•
Expires: 2000-09-15
Abstract
Abstract The invention relates to obtaining weather-ability or U.V. light stability in vinyl polymeric translucent and transparent materials, which are designed for use in corrugated roofing, films for greenhouses, and the like. It has been found that by making a composite vinyl polymeric material where the main material or substrate is a transparent or translucent vinyl polymer and capping or coating it with a very thin film of a plasticized vinyl polymer containing a high level of a clear U.V. light absorber or stabilizer, such as, for example 1-cyano-2,2-diphenyl ethylacrylate, excellent weatherability is obtained. The important feature is the concentration of the clear U.V. stabilizer at the surface of the composite material which also results in the use of less U.V. stabilizer.
Inventors
- 👤 Elvira B. Rabinovitch
- 👤 James W. Summers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:16
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/18; B32B27/06; B32B27/08; B32B27/22; B32B27/30; B32B27/304; C; C08; C08K; C08K5/00; B32B2307/00; B32B2307/40; B32B2307/412; B32B2307/414; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
163 words
A transparent or translucent polymeric composite material adapted for use outdoors comprising, a substrate containing a vinyl polymeric material selected from the group consisting of homopolymers of vinyl halides and vinylidene halides, copolymers of vinyl halides and vinylidene halides with each other and each with one or more polymerizable olefinic monomers having at least one terminal CH 2 ═C< grouping, and chlorinated vinyl chloride homopolymers and copolymers, and mixtures of any of said homopolymers and copolymers, said substrate having integrally attached thereto a capstock containing a vinyl homopolymer or copolymer, from about 10 parts to less than about 35 parts by weight of a plasticizer, based on the weight of 100 parts of said homopolymer of copolymer, and from about 1 part to about 15 parts by weight of a clear U.V. light absorber, based on the weight of 100 parts of said homopolymer or copolymer, said U.V. light absorber being selected from the group consisting of substituted alkyl acrylates and alkoxy benzophenones.
Claim 2
Dependent Claim
163 words
A transparent or translucent polymeric composite material adapted for use outdoors comprising, a substrate containing a vinyl polymeric material selected from the group consisting of homopolymers of vinyl halides and vinylidene halides, copolymers of vinyl halides and vinylidene halides with each other and each with one or more polymerizable olefinic monomers having at least one terminal CH 2 ═C< grouping, and chlorinated vinyl chloride homopolymers and copolymers, and mixtures of any of said homopolymers and copolymers, said substrate having integrally attached thereto a capstock containing a vinyl homopolymer or copolymer, from about 10 parts to less than about 35 parts by weight of a plasticizer, based on the weight of 100 parts of said homopolymer of copolymer, and from about 1 part to about 15 parts by weight of a clear U.V. light absorber, based on the weight of 100 parts of said homopolymer or copolymer, said U.V. light absorber being selected from the group consisting of substituted alkyl acrylates and alkoxy benzophenones.
Claim 3
Dependent Claim
29 words
A composite material as defined in claim 1 wherein said vinyl polymeric material is polyvinyl chloride having an inherent viscosity in the range of about 0.45 to about 1.20.
Claim 4
Dependent Claim
31 words
A composite material as defined in claim 1 wherein the vinyl homopolymer in the capstock is polyvinyl chloride having an inherent viscosity in the range of about 0.45 to about 1.20.
Claim 5
Dependent Claim
31 words
A composite material as defined in claim 2 wherein the vinyl homopolymer in the capstock is polyvinyl chloride having an inherent viscosity in the range of about 0.45 to about 1.20.
Claim 6
Dependent Claim
14 words
A composite material as defined in claim 1 wherein said plasticizer is dioctyl phthalate.
Claim 7
Dependent Claim
21 words
A composite material as defined in claim 1 wherein said plasticizer is a mixture of dioctyl phthalate and epoxidized soybean oil.
Claim 8
Dependent Claim
17 words
A composite material as defined in claim 1 wherein the U.V. light absorber is 1-cyano-2,2-diphenyl ethyl acrylate.
Claim 9
Dependent Claim
17 words
A composite material as defined in claim 1 wherein the U.V. light absorber is 1-cyano-2,2-diphenyl octyl acrylate.
Claim 10
Dependent Claim
16 words
A composite material as defined in claim 1 wherein the U.V. light absorber is 2-hydroxy-4-methoxy benzophenone.
Claim 11
Dependent Claim
15 words
A composite material as defined in claim 1 wherein the U.V. light absorber is 2-hydroxy-4n-octoxybenzophenone.
Claim 12
Dependent Claim
30 words
A composite material as defined in claim 4 wherein the plasticizer is a mixture of dioctyl phthalate and epoxidized soybean oil and the U.V. light absorber is 1-cyano-2,2-diphenyl ethyl acrylate.
Claim 13
Dependent Claim
30 words
A composite material as defined in claim 4 wherein the plasticizer is a mixture of dioctyl phthalate and epoxidized soybean oil and the U.V. light absorber is 1-cyano-2,2-diphenyl octyl acrylate.
Claim 14
Dependent Claim
29 words
A composite material as defined in claim 4 wherein the plasticizer is a mixture of dioctyl phthalate and epoxidized soybean oil and the U.V. light absorber is 2-hydroxy-4-methoxy benzophenone.
Claim 15
Dependent Claim
28 words
A composite material as defined in claim 4 wherein the plasticizer is a mixture of dioctyl phthalate and epoxidized soybean oil and the U.V. light absorber is 2-hydroxy-4n-octoxybenzophenone.
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) | 1985-03-15 | 1985-09-14 | 1986-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-15 | 1989-09-14 | 1990-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-15 | 1993-09-14 | 1994-03-16 | $7700.00 | Window Closed / Lapsed |