IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0131974
(1993-10-04)
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발명자
/ 주소 |
- Robin Mark L. (West Lafayette IN) Iikubo Yuichi (West Lafayette IN) Register W. Douglas (Lafayette IN) Rose Richard S. (West Lafayette IN)
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| 출원인 / 주소 |
- Great Lakes Chemical Corporation (W. Lafayette IN 02)
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| 인용정보 |
피인용 횟수 :
11 인용 특허 :
0 |
초록
▼
Blowing agents for use in foamable plastics such as polystyrene, polyvinyl chloride, polyethylene and other non-polyisocyanate-based foams, comprising a mixture of 1,1,1,2,3,3,3-heptafluoropropane in combination with one or more hydrocarbons or partially halogenated alkanes. In one aspect of the inv
Blowing agents for use in foamable plastics such as polystyrene, polyvinyl chloride, polyethylene and other non-polyisocyanate-based foams, comprising a mixture of 1,1,1,2,3,3,3-heptafluoropropane in combination with one or more hydrocarbons or partially halogenated alkanes. In one aspect of the invention the hydrocarbon adjuvant is selected from the group consisting of propane, butane, isobutane, n-pentane, i-pentane, neopentane, n-hexane, 2-methylpentane, 3-methylpentane and 2,2-dimethylbutane. In another aspect of the invention the halogenated alkane is selected from the group consisting of ethyl chloride, 2,2-dichloro-1,1,1-trifluoroethane (HCFC-123), 1,1-dichloro-l-fluoroethane (HCFC-141b), 1-chloro-1,1-difluoroethane (HCFC-142b), 2-chloro-1,1,1,2 -tetrafluoroethane (HCFC-124), 3,3-dichloro-1,1,1,2,2-pentafluoropropane (HCFC-225ca), 1,3-dichloro-1,1,2,2,3-pentafluoropropane (HCFC-225cb), 1,1-difluoroethane (HFC-152a), 1,1,1-trifluoroethane (HFC-143a), 1,1,1,2-tetrafluoroethane (HFC-134a), 1,1,2,2-tetrafluoroethane (HFC-134), 1,1,2,2,3-pentafluoropropane (HFC-245ca), 1,1,1,2,3,3-hexafluoropropane (HFC-236ea), and 1,2,3,3-pentafluoropropane (HFC-245ea).
대표청구항
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A polymer foam which is essentially free of polyisocyanate based polymers comprising: a blowing agent consisting essentially of 1,1,1,2,3,3,3-heptafluoropropane and a halohydrocarbon selected from the group consisting of 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124), 1,1,2,2-tetrafluoroethane (HFC-1
A polymer foam which is essentially free of polyisocyanate based polymers comprising: a blowing agent consisting essentially of 1,1,1,2,3,3,3-heptafluoropropane and a halohydrocarbon selected from the group consisting of 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124), 1,1,2,2-tetrafluoroethane (HFC-134), 1-chloro-1,1-difluoroethane (HCFC-142b) and 1,1,1,2,3,3-hexafluoropropane (HFC-236ea).
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