US4424292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared reflecting vinyl polymer compositions
Assignee: Geon Co
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Filing: 1982-10-27
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Granted: 1984-01-03
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Expires: 2002-10-27
Abstract
Abstract The invention relates to a vinyl polymer composition suitable for outdoor use in the sunlight. The heat buildup in articles made from the composition is lowered without changing the ultraviolet protection or the color of the articles. This is accomplished by employing in the composition a black infrared reflecting pigment, such as a mixture of Cr2O3 and Fe2O3, and other infrared reflecting pigments.
Inventors
- 👤 Elvira B. Ravinovitch
- 👤 James W. Summers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:57
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
80 words
A composition adapted for use in the sunlight containing a homopolymer or copolymer of vinyl, halide and vinylidene chloride polymerized with each other or each with one or more polymerizable olefinic monomers having at least one terminal ##STR1## group, with or without a plasticizer for the polymer, a tin stabilizer, and color pigments, wherein the improvement consists essentially of the addition of an effective amount of an infrared reflecting black pigment of a mixture of chromic oxide and ferric oxide.
Claim 2
Dependent Claim
80 words
A composition adapted for use in the sunlight containing a homopolymer or copolymer of vinyl, halide and vinylidene chloride polymerized with each other or each with one or more polymerizable olefinic monomers having at least one terminal ##STR1## group, with or without a plasticizer for the polymer, a tin stabilizer, and color pigments, wherein the improvement consists essentially of the addition of an effective amount of an infrared reflecting black pigment of a mixture of chromic oxide and ferric oxide.
Claim 3
Dependent Claim
35 words
A composition as defined in claim 1 wherein the level of infrared reflecting black pigment is from about 0.25 part to about 15 parts by weight, based on 100 parts by weight of the polymer.
Claim 4
Dependent Claim
13 words
A composition as defined in claim 1 wherein the homopolymer is polyvinyl chloride.
Claim 5
Dependent Claim
14 words
A composition as defined in claim 1 wherein the plasticizer is di-(2-ethyl hexyl) phthalate.
Claim 6
Dependent Claim
31 words
A composition as defined in claim 1 wherein the plasticizer level is from about 10 parts to about 40 parts by weight, based on 100 parts by weight of the polymer.
Claim 7
Dependent Claim
16 words
A composition as defined in claim 1 wherein the monomers are vinyl chloride and ethyl acrylate.
Claim 8
Dependent Claim
13 words
A composition as defined in claim 4 wherein the homopolymer is polyvinyl chloride.
Claim 9
Dependent Claim
13 words
A composition as defined in claim 5 wherein the homopolymer is polyvinyl chloride.
Claim 10
Dependent Claim
18 words
A composition as defined in claim 7 wherein the color pigments are chromathal brown 5R and phthalocyanine green.
Claim 11
Dependent Claim
14 words
A composition as defined in claim 6 wherein the plasticizer is di-(2-ethyl hexyl) phthalate.
Claim 12
Dependent Claim
35 words
A composition as defined in claim 2 wherein the level of infrared reflecting black pigment is from about 0.5 part to about 10 parts by weight based on 100 parts by weight of the polymer.
Claim 13
Dependent Claim
15 words
A composition as defined in claim 7 wherein the tin stabilizer is a tin thioglycollate.
Claim 14
Dependent Claim
71 words
A process for reducing the heat build-up of polymeric materials upon exposure the sunlight said polymeric materials containing a homopolymer or a copolymer of vinyl halide and vinylidene halide polymerized with each other or each with one or more polymerizable olefinic monomers having at least one terminal ##STR2## group, comprising incorporating therein an effective amount of an infrared reflecting black pigment comprised of a mixture of chromic oxide and ferric oxide.
Claim 15
Dependent Claim
71 words
A process for reducing the heat build-up of polymeric materials upon exposure the sunlight said polymeric materials containing a homopolymer or a copolymer of vinyl halide and vinylidene halide polymerized with each other or each with one or more polymerizable olefinic monomers having at least one terminal ##STR2## group, comprising incorporating therein an effective amount of an infrared reflecting black pigment comprised of a mixture of chromic oxide and ferric oxide.
Claim 16
Dependent Claim
34 words
A process of claim 13 wherein the amount of infrared reflecting black pigment is from about 0.25 parts to about 15 parts by weight, based on 100 parts by weight of the polymeric material.
Claim 17
Dependent Claim
12 words
A process of claim 13 wherein the polymeric material is polyvinyl chloride.
Claim 18
Dependent Claim
18 words
A process of claim 13 wherein the polymeric material is a copolymer of vinyl chloride and ethyl acrylate.
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) | 1987-01-02 | 1987-07-04 | 1988-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-02 | 1991-07-04 | 1992-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-02 | 1995-07-04 | 1996-01-03 | $7700.00 | Window Closed / Lapsed |