Method for reducing the terminal carboxyl group content of a saturated polyester, a saturated polyester having a reduced terminal carboxyl group content, and a molded article composed of such a saturated polyester
申请人:TEIJIN LIMITED
公开号:EP0030350A1
公开(公告)日:1981-06-17
Saturated polyesters having a reduced terminal carboxyl group content are produced by reacting a carboxyl-terminated, substantially linear, fiber-forming saturated polyester with a monocyclic imino ether compound of the formula
e.g.
or
The monocyclic imino ether compound may be added in a melt-molding machine at a temperature above the temperature at which the saturated polyester melts, or a molded article composed of a carboxyl-terminated, substantially linear, fiber-forming saturated polyester may be treated with the monocyclic imino ether compound.
RESIN COMPOSITION AND MOLDED ARTICLE FILM AND FIBER EACH COMPRISING THE SAME
申请人:TORAY INDUSTRIES, INC.
公开号:EP1445282A1
公开(公告)日:2004-08-11
Disclosed are a resin composition comprising a polylactic acid resin and a polyacetal resin, and such a resin composition in which the polylactic acid resin and the polyacetal resin are kept miscible with each other. The resin composition has good moldability, workability, mechanical properties, heat resistance and transparency, and may be worked into moldings, films and fibers for practical use.
ALIPHATIC POLYESTER RESIN COMPOSITION, METHOD FOR PRODUCTION THEREOF, MOLDED ARTICLE AND FOAMED ARTICLE COMPRISING THE RESIN COMPOSITION
申请人:UNITIKA LTD.
公开号:EP1640406A1
公开(公告)日:2006-03-29
An aliphatic polyester resin composition is provided which is excellent in heat resistance, moldability and hydrolysis resistance. The aliphatic polyester resin composition comprises a biodegradable polyester resin (A) essentially including an α- and/or β-hydroxycarboxylic acid unit and crosslinked by at least one crosslinking agent (B) selected from the group consisting of (meth)acrylate compounds and polyvalent isocyanate compounds, wherein some or all of carboxyl groups of the resin (A) are blocked by 0.01 to 20 parts by mass of a terminal blocking agent (C) based on 100 parts by mass of the resin (A).
RESIN COMPOSITION AND MOLDED ARTICLE COMPRISING THE SAME
申请人:TORAY INDUSTRIES, INC.
公开号:EP1792941A1
公开(公告)日:2007-06-06
A resin composition in which a polylactic acid resin (A) 95-5 wt%, an aromatic polycarbonate resin (B) 5-95 wt%, and, with respect to 100 wt parts of the total of the (A) and the (B), at least one compatibilizer selected from a polymer compound containing an acrylic resin or styrene resin unit as a graft (C), a polymer compound to which a glycidyl compound or an acid anhydride is grafted or copolymerized (D) and an oxazoline compound, an oxazine compound and a carbodiimide compound (E) are compounded.
It is an object of the present invention to provide a polylactic acid composition having excellent crystallinity, wet heat stability and melt stability. It is another object of the present invention to provide a molded article which is obtained from the polylactic acid composition and excellent in appearance and color.
The present invention is a composition and molded article thereof which comprises a polylactic acid (component A), a carbodiimide compound (component B) and a phosphoric acid ester metal salt (component C).