IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0886659
(1992-05-20)
|
|
발명자
/ 주소 |
- Zabrocki Vincent S. (Newark OH) Kelch Robert H. (Granville OH)
|
| 출원인 / 주소 |
- The Dow Chemical Company (Midland MI 02)
|
| 인용정보 |
피인용 횟수 :
21 인용 특허 :
0 |
초록
▼
A weatherable film for lamination to a non-weatherable substrate, including, for example a three-layer film structure including: at least one first surface layer of a weatherable polymer comprising (a) AES, ASA, SAN or mixtures thereof or (b) any of the polymers of (a) blended with PVC, CPE, aliphat
A weatherable film for lamination to a non-weatherable substrate, including, for example a three-layer film structure including: at least one first surface layer of a weatherable polymer comprising (a) AES, ASA, SAN or mixtures thereof or (b) any of the polymers of (a) blended with PVC, CPE, aliphatic polyurethanes or saturated styrenic block copolymers; said layer having a 1 percent secant modulus of greater than about 150,000 psi; at least one second intermediate layer being a tie layer underlying the weatherable layer, said intermediate tie layer being adjacent to and adhered to the weatherable layer, said intermediate tie layer having a modulus of less than about 150,000 psi; said tie layer adherable to at least a third underlying layer; and at least one third layer underlying the tie layer, said third layer adjacent to and adhered to the tie layer said third layer having a modulus of less than about 150,000 psi.
대표청구항
▼
A flexible film structure adapted for use as a weatherable surface coating on a substrate, comprising: a) at least one weatherable layer comprising from about 50 weight percent to 100 weight percent of a weatherable polymer selected from the group consisting of acrylonitrile-ethylene/propylene rubbe
A flexible film structure adapted for use as a weatherable surface coating on a substrate, comprising: a) at least one weatherable layer comprising from about 50 weight percent to 100 weight percent of a weatherable polymer selected from the group consisting of acrylonitrile-ethylene/propylene rubber-styrene, acrylonitrile-styrene-acrylate rubber, styrene acrylonitrile, and blends thereof, said weatherable layer having a l percent secant modulus of greater than about 150,000 psi; b) at least one intermediate tie layer, underlying the weatherable layer comprising a thermoplastic polymer selected from the group consisting of chlorinated polyethylene, styrenic block polymer, copolyamide adhesives, copolyester adhesives, polyvinyl, polyurethanes, ethylene propylene diene copolymers, and mixtures thereof, said intermediate tie layer being adjacent to and adhered to said at least one weatherable layer, said intermediate tie layer having a 1 percent secant modulus of less than about 150,000 psi; and c) at least one adhesive layer, underlying said intermediate tie layer, comprising an ethylene copolymer or terpolymer, chlorinated polyethylene, styrenic block polymer, copolyamide adhesive, copolyester adhesive, polyvinyl chloride, polyurethane, or a mixture thereof, said adhesive layer adjacent to and adhered to said at least one intermediate tie layer, said adhesive layer having a 1 percent secant modulus of less than about 150,000 psi; wherein the total thickness of the film structure is less than about 25 mils.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.