Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1997-07-17
1999-06-29
Merriam, Andrew E. C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524493, 524539, 525411, 525450, 528359, 528361, C08L 6704, C08K 334
Patent
active
059169508
ABSTRACT:
A thermal resistant resin composition comprising 100 parts by weight of polyester (A) having 25-75% by weight of a lactic acid component consisting of 25-75% by weight of a lactic acid-based polymer (a1) and 25-75% by weight of other aliphatic polyester (a2) having a melting point of 100-250.degree. C., and 0.1-70 parts by weight of a crystalline inorganic filler (B) containing 10% by weight or more of SiO.sub.2. The thermal resistant resin composition of the invention performs following function:
1) injection molding can be carried out at a mold temperature of Tg or less or around room temperature with a short molding-cycle,
2) quick crystallization velocity and satisfactory crystallinity can be attained in the molding step, and
3) the molded articles have, as a result, excellent thermal resistance and generate properties of low deterioration of a high polymer component and slow embrittlement in use.
REFERENCES:
patent: 4839130 (1989-06-01), Kaplan et al.
patent: 5637631 (1997-06-01), Kitada et al.
patent: 5691424 (1997-11-01), Suzuki et al.
patent: 5786408 (1998-07-01), Kuroda et al.
Ajioka Masanobu
Kitahara Yasuhiro
Nakata Tomoyuki
Obuchi Shoji
Suzuki Kazuhiko
Merriam Andrew E. C.
Mitsui Chemicals Inc.
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