公开(公告)号：JPH11147994A

公开(公告)日：1999-06-02

申请号：JP22260198

申请日：1998-08-06

Applicant: DEGUSSA

Inventor： KELLER BRUNO DR ,  SCHAUHOFF STEPHANIE ,  DORN KLAUS DR ,  ALT HARTMUT ,  MICHELCHEN DIETRICH

IPC: B29C47/00 ,  B29K59/00 ,  C08K5/14 ,  C08K5/37 ,  C08L59/00

Abstract: PROBLEM TO BE SOLVED: To obtain a reinforced or nonreinforced polyoxymethylene molding compsn. SOLUTION: This compsn. comprises at least one polyoxymethylene homo- and/or copolymer (i), at least one conventional additive (ii), and at least one polymeric plastics material (iii) and is characterizd in that (iii) is a copolymer obtainable by the bulk polymn. of a mixture of 60-90 pts.wt. at least one (meth) acrylate (A), 10-40 pts.wt. at least one (meth)acrylamide (B), 0.2-5 pts.wt. (based on 100 pts.wt. (A+B) mol.wt. regulator (C), and up to 2 pts.wt. (based on 100 pts.wt. A+B) lipophilic free-radical polymn. initiator and in that the compsn. contains (iii) in an ant. of 0.01-2 pts.wt. [based on (i)+(ii)].

公开(公告)号：DE102008040464A1

公开(公告)日：2010-01-21

申请号：DE102008040464

申请日：2008-07-16

Applicant: EVONIK DEGUSSA GMBH

Inventor： KOSCHABEK RENE ,  BRENNER GABRIELE ,  BORGMANN CORNELIA ,  ALT HARTMUT ,  BALK SVEN

IPC: C08F255/02

Abstract: The present invention relates to polyester acrylate graft copolymers comprising poly(meth)acrylates as graft substrate, the graft substrate having internal and/or terminal functional groups and polyester side chains as graft branches and/or having polyester blocks attached to at least one chain end of the graft substrate. The present invention further relates to processes for preparing the polyester acrylate graft copolymers and also to their use.

公开(公告)号：BR9804284A

公开(公告)日：1999-12-14

申请号：BR9804284

申请日：1998-08-07

Applicant: DEGUSSA

Inventor： KELLER BRUNO DR ,  SCHAUHOFF STEPHANIE DR ,  DORN KLAUS DR ,  ALT HARTMUT ,  MICHELCHEN DIETRICH

IPC: B29C47/00 ,  B29K59/00 ,  C08K5/14 ,  C08K5/37 ,  C08L59/00 ,  C08L59/02 ,  C08L59/04

Abstract: A polyoxymethylene moulding composition (I) comprises (A) a polyoxymethylene homo- and/or copolymer; (B) conventional additives; and (C) 0.01-2 parts weight (pts. wt.) (w.r.t. (A) + (B)) of a polymeric additive to improve thermal stability, consisting of a copolymer prepared by polymerisation of (C1) 60-90 pts. wt. of a (methy)acrylate; (C2) 10-40 pts. wt. of a (meth)acrylamide; (C3) 0.2-5 pts. wt. of a molecular weight regulator (w.r.t. 100 pts. wt. (C1) and (C2)); and (C4) upto 2 pts. wt. of a lipophilic radical polymerisation initiator (w.r.t. 100 pts. wt. (C1) and (C2)). Also claimed are (i) production of a moulding article or film from (I) by melting and mixing the components in an extruder at 150-260 degrees C and processing to produce a reinforced or non-reinforced article or film; and (ii) the resulting moulded article, semi-finished product or film.

公开(公告)号：DE19734415A1

公开(公告)日：1998-03-05

申请号：DE19734415

申请日：1997-08-08

Applicant: DEGUSSA

Inventor： KELLER BRUNO DR ,  SCHAUHOFF STEPHANIE DR ,  DORN KLAUS DR ,  ALT HARTMUT ,  MICHELCHEN DIETRICH

IPC: C08K5/13 ,  C08K5/134 ,  C08L59/00 ,  C08L59/02 ,  C07C69/732 ,  C09K15/08

Abstract: A process for stabilising POM (polyacetal) towards oxidative degradation, by mixing the POM with an effective amount of a sterically hindered phenol ester of a dialkylene glycol with formula (I).

公开(公告)号：CA2726458A1

公开(公告)日：2010-01-21

申请号：CA2726458

申请日：2009-06-22

Applicant: EVONIK DEGUSSA GMBH

Inventor： KOSCHABEK RENE ,  BRENNER GABRIELE ,  BORGMANN CORNELIA ,  ALT HARTMUT ,  BALK SVEN

IPC: C08F265/02 ,  C08F265/04 ,  C08F293/00 ,  C08G81/02 ,  C09D151/00 ,  C09J153/00

Abstract: The invention relates to polyester acrylate graft copolymers comprising poly(meth)acrylates as a graft substrate, wherein the graft substrate has nonterminal and/or terminal functional groups and polyester side chains as grafts and/or has polyester blocks bound to at least one chain end of the graft substrate. The invention further relates to methods for producing polyester acrylate graft copolymers and to the use thereof.

公开(公告)号：DE19735277C2

公开(公告)日：1999-07-15

申请号：DE19735277

申请日：1997-08-14

Applicant: DEGUSSA

Inventor： KELLER BRUNO DR ,  DORN KLAUS DR ,  LACH HEINZ ,  ALT HARTMUT ,  MICHELCHEN DIETRICH

IPC: B01J19/02 ,  C08G2/00 ,  C09D159/02 ,  C09D159/04 ,  C08G2/10 ,  C09D159/00

公开(公告)号：BRPI0915752A2

公开(公告)日：2015-11-03

申请号：BRPI0915752

申请日：2009-06-22

Applicant: EVONIK DEGUSSA GMBH

Inventor： BORGMANN CORNELIA ,  BRENNER GABRIELE ,  ALT HARTMUT ,  KOSCHABEK RENÉ ,  BALK SVEN

IPC: C08F265/02 ,  C08F265/04 ,  C08F293/00 ,  C08G81/02 ,  C09D151/00 ,  C09J153/00

公开(公告)号：DE19735277A1

公开(公告)日：1999-02-18

申请号：DE19735277

申请日：1997-08-14

Applicant: DEGUSSA

Inventor： KELLER BRUNO DR ,  DORN KLAUS DR ,  LACH HEINZ ,  ALT HARTMUT ,  MICHELCHEN DIETRICH

IPC: B01J19/02 ,  C08G2/00 ,  C09D159/02 ,  C09D159/04 ,  C08G2/10 ,  C08L59/02 ,  C08L59/04 ,  C09D159/00

Abstract: The vessel for polymerizing formals has an inner surface of polyoxymethylene homo- or copolymers. POLYMERS - The polyoxymethylene copolymers contain up to 50 (0.3-10) mol.% repeating units of formula (I). SPECIFIC SUBSTANCES - The entire vessel is coated with polyoxymethylene homo- or copolymer.

公开(公告)号：DE19834837A1

公开(公告)日：1999-02-11

申请号：DE19834837

申请日：1998-08-01

Applicant: DEGUSSA

Inventor： KELLER BRUNO DR ,  SCHAUHOFF STEPHANIE DR ,  DORN KLAUS DR ,  ALT HARTMUT ,  MICHELCHEN DIETRICH

IPC: B29C47/00 ,  B29K59/00 ,  C08K5/14 ,  C08K5/37 ,  C08L59/00 ,  C08L33/04 ,  C08L33/26 ,  C08J5/18 ,  C08G2/00

Abstract: A polyoxymethylene moulding composition (I) comprises (A) a polyoxymethylene homo- and/or copolymer; (B) conventional additives; and (C) 0.01-2 parts weight (pts. wt.) (w.r.t. (A) + (B)) of a polymeric additive to improve thermal stability, consisting of a copolymer prepared by polymerisation of (C1) 60-90 pts. wt. of a (methy)acrylate; (C2) 10-40 pts. wt. of a (meth)acrylamide; (C3) 0.2-5 pts. wt. of a molecular weight regulator (w.r.t. 100 pts. wt. (C1) and (C2)); and (C4) upto 2 pts. wt. of a lipophilic radical polymerisation initiator (w.r.t. 100 pts. wt. (C1) and (C2)). Also claimed are (i) production of a moulding article or film from (I) by melting and mixing the components in an extruder at 150-260 deg C and processing to produce a reinforced or non-reinforced article or film; and (ii) the resulting moulded article, semi-finished product or film.