Heat-resistant molded article of lactic acid-base polymer

Details Heat-resistant molded article of lactic acid-base polymer Heat-resistant molded article of lactic acid-base polymer

1995-05-25

1997-11-25

Vargot, Mathieu D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

26433121, 264349, 525413, 525415, 528354, 528361, C08L 6704

Patent

active

056914245

ABSTRACT:
A preparation process of heat-resistant molded articles of a lactic acid-based polymer comprising mixing the lactic acid-based polymer and poly-.epsilon.-caprolactone so as to obtain a L-lactic acid ratio of 75% by weight or more, adding to the polymer mixture a crystalline inorganic powder containing 50% by weight or more of SiO.sub.2, melt-kneading the resultant composition, filling the same into a mold which is set at 85.degree..about.125.degree. C. and forming a shape while promoting crystallization. The molded articles have excellent heat resistance and impact strength, are suitably used for food trays and beverage cups, and can be degraded, in the case of waste, into nontoxic water and carbon dioxide like natural products within a relatively short period in the natural environment.

REFERENCES:
patent: 4444927 (1984-04-01), Borysko
patent: 4839130 (1989-06-01), Kaplan et al.
patent: 5409751 (1995-04-01), Suzuki et al.
patent: 5502158 (1996-03-01), Sinclair et al.
Database WPI, Derwent Publications Ltd., London GB; AN 94-037921(059) XP002010135 & JP-A-05342903 (Mitsui Toatsu Chemicals, Inc.), Dec. 24, 1993, *Abstract*.
Database WPI, Derwent Publications, Ltd., London, GB; AN 93-137113(17) XP002010136 & JP-A-05070696 (Toppan Printing Co., Ltd.), Mar. 23, 1993 *Abstract*.

Affiliated with

Also associated with

Rating

Heat-resistant molded article of lactic acid-base polymer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat-resistant molded article of lactic acid-base polymer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat-resistant molded article of lactic acid-base polymer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2107844