High modulus, high strength melt-processible polyester of hydroquinone poly (iso-terephthalates) containing residues of
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08J-067/00
C08L-067/00
C08G-063/00
출원번호
US-0499482
(1990-06-04)
발명자
/ 주소
Layton Richard (Augusta GA) Cleary James W. (Neenah WI) Huspeni Paul J. (North Augusta SC) Frayer Paul D. (Martinez GA) Matzner Markus (Edison NJ)
출원인 / 주소
Amoco Corporation (Chicago IL 02)
인용정보
피인용 횟수 :
17인용 특허 :
0
초록▼
This invention pertains to novel copolyesters consisting essentially of units (I), (II), (III), and (V). [Figure] [Figure] and blends of these polymers and articles made from both. Units (I), (II), (III), and (IV) are present in specified proportions as defined in the “Description of the Invention”.
This invention pertains to novel copolyesters consisting essentially of units (I), (II), (III), and (V). [Figure] [Figure] and blends of these polymers and articles made from both. Units (I), (II), (III), and (IV) are present in specified proportions as defined in the “Description of the Invention”. The instant copolyesters display orientation in the molten state, good fiber ratings and high strength; they have melting points in the range of from about 340°to about 400°C. and are melt-processible. Advantageously, these compositions filled with about 30 weight percent of glass fibers display heat distortion temperatures of over 240°C. up to about 280°C. and higher, when measured under a load of 264 psi. When blended, certain properties are improved, particularly they are easier to melt fabricate, have a decreased tendency to blister and increased strength. These polymers and blends may be used advantageously in ovenware, electronic components, electrical equipment, and other end uses requiring high temperatures.
대표청구항▼
A high modulus, high strength melt-processible polyester consisting essentially of recurring units (I), (II), (III), and (IV): [Figure] [Figure] having a melting point in the range of from about 340°to 400°C., a crystallization temperature of 300°to 340°C., a crystallization rate of at least 1000 co
A high modulus, high strength melt-processible polyester consisting essentially of recurring units (I), (II), (III), and (IV): [Figure] [Figure] having a melting point in the range of from about 340°to 400°C., a crystallization temperature of 300°to 340°C., a crystallization rate of at least 1000 counts per minute; and when filled with 30 percent by weight glass fibers, has a heat distortion temperature of at least 240°C. under load of 264 psi and wherein the relative molar amounts of units (I), (II), (III), and (IV) are such that the polyester falls within the circumscribed area of the triangular diagram in the attached FIG. 1.
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이 특허를 인용한 특허 (17)
Sethumadhavan, Murali; Landi, Vincent R.; Borges, Luis D., Circuit materials, circuits, multi-layer circuits, and methods of manufacture thereof.
Murouchi Satoshi,JPX ; Yamada Yoshikuni,JPX ; Kobayashi Toshitaka,JPX, Method of producing thermotropic liquid crystalline copolyester, thermotropic liquid crystalline copolyester composition obtained by the same method, and molding made of the same composition.
Murouchi Satoshi,JPX ; Yamada Yoshikuni,JPX ; Kobayashi Toshitaka,JPX, Method of producing thermotropic liquid crystalline copolyester, thermotropic liquid crystalline copolyester composition obtained by the same method, and molding made of the same composition.
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