Polyester or copolyester/polyolefin laminate structures and methods of making the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-027/08
B32B-027/30
B32B-027/32
B32B-027/36
B32B-031/14
출원번호
US-0356011
(2003-01-31)
발명자
/ 주소
Willham,John Edward Christopher
Pecorini,Thomas Joseph
출원인 / 주소
Eastman Chemical Company
인용정보
피인용 횟수 :
54인용 특허 :
21
초록▼
The invention relates to polyester/polyolefin laminate materials having improved properties. The invention also relates to copolyester/polyolefin laminate materials having improved properties. The laminates herein exhibit improved results in flammability studies. The invention further relates to met
The invention relates to polyester/polyolefin laminate materials having improved properties. The invention also relates to copolyester/polyolefin laminate materials having improved properties. The laminates herein exhibit improved results in flammability studies. The invention further relates to methods of making laminate structures.
대표청구항▼
The invention claimed is: 1. A polyester or copolyester/polyolefin laminate comprising: a) a first polymer layer comprising a polyester or a copolyester, wherein the first polymer layer has an inner and an outer surface, and a thickness of from about 0.080 inches to about 0.250 inches; b) a tie la
The invention claimed is: 1. A polyester or copolyester/polyolefin laminate comprising: a) a first polymer layer comprising a polyester or a copolyester, wherein the first polymer layer has an inner and an outer surface, and a thickness of from about 0.080 inches to about 0.250 inches; b) a tie layer comprising consisting essentially of an alkyl acrylate copolymer having a first surface and a second surface, wherein the first surface is adjacent to the inner surface of the first polymer layer; and c) a second polymer layer comprising a polyolefin, wherein the second polymer layer has an inner and an outer surface, and wherein the second surface of the tie layer is adjacent to the inner surface of the second polymer layer. 2. The laminate of claim 1, wherein the laminate is suitable for applications where a CC1 classification is required as defined by UBC Standard 26-7. 3. The laminate of claim 1, wherein the tie layer comprises one or more of: ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-butyl acrylate copolymer or ethylene-methyl methacrylate copolymer. 4. The laminate of claim 1, wherein the second polymer layer comprises one or more of: polyethylene, polypropylene, poly-1-butene or ethylene polymer. 5. The laminate of claim 1, wherein the second polymer layer comprises a polyethylene woven fabric, polyethylene film or polyethylene sheeting. 6. The laminate of claim 1, wherein the second polymer layer has a thickness of from about 0.001 to about 0.020 inches. 7. The laminate of claim 1, wherein the tie layer has a thickness of from about 0.0005 to about 0.020 inches. 8. A process for making a laminate, the process comprising: a) providing a first polymer layer comprising a polyester or copolyester, wherein the first polymer layer has an inner and an outer surface, and a thickness of from about 0.080 inches to about 0.250 inches; b) providing a tie layer comprising consisting essentially of an alkyl acrylate polymer, wherein the tie layer has a first and a second surface; c) providing a second polymer layer comprising a polyolefin, wherein the second polymer layer has an inner and an outer surface; d) applying the tie layer to one or more of the inner surface of the first polymer layer or the inner surface of the second polymer layer and bringing the first and second polymer layers into proximal contact with each other, wherein the tie layer is situated between the first and second polymer layers, thereby providing a pre-laminate; and e) applying sufficient heat and/or pressure to the pre-laminate to provide a laminate material. 9. The process of claim 8, wherein the tie layer is applied in sheet form. 10. The process of claim 8, wherein the tie layer is applied by extrusion. 11. The process of claim 8, wherein the laminate is suitable for use in applications where a CC1 classification is required as defined by UBC Standard 26-7. 12. The process of claim 8, wherein the alkyl acrylate copolymer comprises one or more of ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-butyl acrylate copolymer or ethylene-methyl methacrylate copolymer. 13. The process of claim 8, wherein the second polymer layer comprises one or more of: polyethylene, polypropylene, poly-1-butene or ethylene polymer. 14. The process of claim 8, wherein the second polymer layer comprises a polyethylene woven fabric, polyethylene film or polyethylene sheeting. 15. The process of claim 8, wherein the second polymer layer has a thickness of from about 0.001 to about 0.020 inches. 16. The process of claim 8, wherein the tie layer has a thickness of from about 0.0005 to about 0.020 inches.
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