IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0366122
(1989-06-14)
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발명자
/ 주소 |
- Khanna Yash P. (Cedar Knolls NJ) Belles
- Jr. John J. (Morristown NJ) Reimschuessel Annemarie C. (Morristown NJ) Banerjie Asis (Madras INX)
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출원인 / 주소 |
- Allied-Signal Inc. (Morristown NJ 02)
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인용정보 |
피인용 횟수 :
8 인용 특허 :
0 |
초록
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This invention relates to a process for improving the optical, thermal and/or mechanical properties of a polymer by subjecting a melt of the polymer to a shearing action at an effective shear rate, as for example a shear rate of greater than about 100 sec-1, for a time sufficient to improve said pro
This invention relates to a process for improving the optical, thermal and/or mechanical properties of a polymer by subjecting a melt of the polymer to a shearing action at an effective shear rate, as for example a shear rate of greater than about 100 sec-1, for a time sufficient to improve said properties.
대표청구항
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A process for improving the thermal, optical and/or mechanical properties of a polymer in the absence of a nucleating agent which comprises the steps of: a) forming a melt of a polymer; and b) subjecting said melt, prior to molding to an effective shear rate of greater than about 100 sec-1 for time
A process for improving the thermal, optical and/or mechanical properties of a polymer in the absence of a nucleating agent which comprises the steps of: a) forming a melt of a polymer; and b) subjecting said melt, prior to molding to an effective shear rate of greater than about 100 sec-1 for time sufficient to improve the thermal, optical and/or mechanical properties of said polymer; wherein said polymer is selected from one or more of the following groups of polymers; -NHCORCONHR′-(i) in which R is an alkylene group of at least two carbon atoms, and R′is selected from R and phenyl groups; (ii) the copolyamide of 30% hexamethylene diammonium isophthalate and 70% hexamethylene diammonium adipate, the copolyamide of up to 30% bis-(p-amidocyclohexyl)methylene, and terephthalic acid and caproactam, poly (hexamethylene adipamide), poly(4aminobutyric acid), poly(7-amino-heptanoic acid), poly(8 aminooctanoic acid), poly(6-aminohexanoic acid), poly((bis(4-aminocyclohexy)methane-1.10-decanedicarboxamide)), poly(peperazine sebacamide), poly(11-amino undecanoic acid), poly(12-aminododecanoic acid), polyhexamethylene isophthalamide, poly(9-aminononanoic acid), polycaproamide, or combinations thereof; and (iii) poly(ethylene terephthalate), poly(cyclohexylenedimethylene, terephthalate), poly(ethylene dodecate, poly(butylene terephthalate), poly(ethylene(2,7-naphthalate), poly(glycolic acid), poly(ethylene succinate), poly(ethylene adipate), poly(ethylene sebacate), poly(decamethylene azelate), poly(decamethylene adipate), poly(decamethylene sebacate), poly(dimethylpropiolactone), poly(ethylene oxybenzoate), poly(ethylene isophthalate), poly(tetramethylene terephthalate, poly(hexamethylene terephthalate), poly(decamethylene terephthalate), poly(1,4-cyclohexylidene dimethyleneterephthalate), and poly(1,4-cyclohexylidene dimethylene terephthalate.
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