US4183777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making weather resistant composites
Assignee: Geon Co
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Filing: 1978-04-17
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Granted: 1980-01-15
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Expires: 1998-04-17
Abstract
Abstract Improved weather resistant products such as building siding, shutters, roof vents and the like, are made by coextruding or laminating a plasticized vinyl chloride capstock with a substrate of rigid vinyl chloride polymers, chlorinated vinyl chloride polymers, or acrylonitrile-butadiene-styrene polymers. The resulting composites are much improved over rigid PVC, chlorinated PVC, or ABS articles alone for retention of appearance and retention of impact on aging.
Inventors
- 👤 James W. Summers
- 👤 George J. Kliner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:14
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/18; B32B27/22; B32B27/30; B32B27/304; E; E04; E04D; E04D5/00; E04D5/10; B32B2264/00; B32B2264/10; B32B2264/102; B32B2307/00; B32B2307/70; B32B2307/712; B32B2419/00; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2998; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
85 words
A method for producing a weatherable composite comprising coextruding: a. a capstock containing: (1) vinyl chloride polymer, (2) at least 6 parts by weight of titanium dioxide per 100 parts by weight of vinyl chloride polymer, (3) from about 10 to less than about 35 parts by weight of a plasticizer per 100 parts by weight of vinyl chloride polymer, said capstock being coextruded with b. a substrate selected from the group consisting of rigid vinyl chloride polymers, chlorinated vinyl chloride polymers, and acrylonitrile-butadiene-styrene polymers.
Claim 2
Independent Claim
85 words
A method for producing a weatherable composite comprising coextruding: a. a capstock containing: (1) vinyl chloride polymer, (2) at least 6 parts by weight of titanium dioxide per 100 parts by weight of vinyl chloride polymer, (3) from about 10 to less than about 35 parts by weight of a plasticizer per 100 parts by weight of vinyl chloride polymer, said capstock being coextruded with b. a substrate selected from the group consisting of rigid vinyl chloride polymers, chlorinated vinyl chloride polymers, and acrylonitrile-butadiene-styrene polymers.
Claim 3
Independent Claim
85 words
A method for producing a weatherable composite comprising laminating: a. a capstock containing: (1) vinyl chloride polymer, (2) at least 6 parts by weight of titanium dioxide per 100 parts by weight of vinyl chloride polymer, (3) from about 10 to less than about 35 parts by weight of a plasticizer per 100 parts by weight of vinyl chloride polymer, said capstock being laminated with, b. a substrate selected from the group consisting of rigid vinyl chloride polymers, chlorinated vinyl chloride polymers, and acrylonitrile-butadiene-styrene polymers.
Claim 4
Independent Claim
85 words
A method for producing a weatherable composite comprising laminating: a. a capstock containing: (1) vinyl chloride polymer, (2) at least 6 parts by weight of titanium dioxide per 100 parts by weight of vinyl chloride polymer, (3) from about 10 to less than about 35 parts by weight of a plasticizer per 100 parts by weight of vinyl chloride polymer, said capstock being laminated with, b. a substrate selected from the group consisting of rigid vinyl chloride polymers, chlorinated vinyl chloride polymers, and acrylonitrile-butadiene-styrene polymers.
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) | 1983-01-14 | 1983-07-16 | 1984-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-14 | 1987-07-16 | 1988-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-14 | 1991-07-16 | 1992-01-15 | $7700.00 | Window Closed / Lapsed |