[특허]Elastomer blends

Elastomer blends 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08L-067/02 C08L-023/08 C08L-027/06 C08L-027/08
출원번호	US-0002553 (1987-01-21)
발명자 / 주소	Hagman John F. (Wilmington DE)
출원인 / 주소	E. I. Du Pont de Nemours and Company (Wilmington DE 02)
인용정보	피인용 횟수 : 51 인용 특허 : 0

초록 ▼

Blends of 5 to 97.5% of a segmented thermoplastic copolyester such as polybutylene terephthalate containing polybutane glycol segments with 95 to 20% of a blend of an ethylene copolymer and 5 to 75% either polyvinyl chloride or polyvinylidene chloride. The polyethylene copolymer is an elastomeric blend of polyvinyl chloride or polyvinylidene chloride with a copolymer of ethylene and esters of ethylenically unsaturated acids, vinyl esters, vinyl alkyl ethers, vinyl chloride, vinylidene chloride acrylonitrile, methacrylonitrile, norbornene, alpha-olefins of 3-12 carbon atoms and optionally ethylenically unsaturated carboxylic acids, carbon monoxide and sulfur dioxide. The blends are processable temperatures lower than either component they are prepared from.

대표청구항 ▼

A thermoplastic elastomeric blend having a lowered melt processing temperature comprising: (A) from 5 to 97.5 weight percent of a segmented thermoplastic copolyester composition consisting essentially of a multiplicity of recurring long-chain ester units and short-chain ester units joined head-to-tail through ester linkages, said long chain ester units being represented by the formula [Figure] I and said short-chain units being represented by the formula [Figure] II where G is a divalent radical remaining after the removal of terminal hydroxyl groups from a poly(alkylene oxide) glycol having a molecular weight of about 400-6,000 and a carbon to oxygen ratio of about 2.0-4.3; R is a divalent radical remaining after removal of carboxyl groups from one or more dicarboxylic acids having molecular weights less than about 300 and D is a divalent radical remaining after removal of hydroxyl groups from one or more diols having a molecular weight less than about 250; provided said short-chain ester units amount to about 15-95 percent by weight of said copolyester, and at least about 50 percent of said short-chain ester units are identical and (B) from 2.5 to 95 weight percent of a partially crosslinked, thermoplastic, melt-processible, elastomeric blend of (a) a copolymer of 30 to 85 weight percent repeating units derived from ethylene and the remainder repeating units derived from one or more ethylenically unsaturated organic comonomers selected from the class consisting of esters of ethylenically unsaturated C3-C20 mono- or dicarboxylic acids, vinyl esters of saturated C2-C18 carboxylic acids, vinyl alkyl ethers wherein the alkyl group has 1-8 carbon atoms, acrylonitrile, methacrylonitrile, norbornene, alpha-olefins of 3-12 carbon atoms, and vinyl aromatic compounds, and optionally up to 30 weight percent of an additional monomer selected from the class consisting of ethylenically unsaturated C3-C20 carboxylic acids, carbon monoxide and sulfur dioxide; and (b) between 5 and 75 weight percent, based on composition (B), of a vinyl or vinylidene halide homopolymer or coolymer with a monomer selected from the group consisting of vinyl esters, acrylonitrile, esters of unsaturated carboxylic acids and vinyl ethers, wherein the comonomer content in (a) is such that the ethylene copolymer is compatible with the vinyl or vinylidene halide polymer.

이 특허를 인용한 특허 (51)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Elastomer blends 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (51)

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Elastomer blends 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (51)

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