公开(公告)号：DE3478452D1

公开(公告)日：1989-07-06

申请号：DE3478452

申请日：1984-08-08

Applicant: BAYER AG

Inventor： GOYERT WILHELM DR ,  WINKLER JURGEN

IPC: C08G18/00 ,  C08G18/10 ,  C08G18/65 ,  C08G18/76

Abstract: This invention relates to novel, thermoplastically processible, branched polyurethanes based on naphthylene-1,5-diisocyanate which have good heat stability and are obtained by the claimed process. In the first stage of the process long-chain polyols are reacted with a first diisocyanate which is any diisocyanate other than naphthylene-1,5-diisocyanate in substoichiometric NCO quantities to produce an OH prepolymer which is then lengthened with excess napthylene-1,5-diisocyanate and with a chain lengthening mixture of short-chain diols and triols and/or polyols in specific ratios. The resulting semi-rigid, thermoplastic polyurethane elastomers are characterized by their good dimensional stability under heat, a good rebound elasticity (even at relatively high temperatures), acceptable low temperature flexibility and an outstanding resistance to wear which properties render them useful for the production of hydraulic seals, seals, rollers, buffers, tubes, bellows, plugs, cylinders, couplings and similar moldings.

公开(公告)号：DE2854406A1

公开(公告)日：1980-06-26

申请号：DE2854406

申请日：1978-12-16

Applicant: BAYER AG

Inventor： GOYERT WILHELM DR ,  GRIMM WOLFGANG ,  AWATER ALBERT DR ,  WAGNER HANS DR ,  KRUEGER BRUNO

IPC: C08L51/00 ,  C08G18/00 ,  C08K7/02 ,  C08L7/00 ,  C08L21/00 ,  C08L33/00 ,  C08L33/02 ,  C08L51/02 ,  C08L51/04 ,  C08L75/00 ,  C08L75/04

Abstract: The instant invention is directed to thermoplastic chemical material comprising: (A) from 60 to 97%, by weight, based on (A)+(B), of a thermoplastic polyurethane; and (B) from 40 to 3%, by weight, based on (A)+(B), of a fibrous reinforcing material; and (C) from 36 to 3 parts, by weight, based on 100 parts of (A)+(B), of a polar polymer. The instant invention is also directed to a process for the production of the thermoplastic chemical materials.

公开(公告)号：ES2099104T3

公开(公告)日：1997-05-16

申请号：ES91108518

申请日：1991-05-25

Applicant: BAYER AG

Inventor： QUIRING BERND DR ,  MUNZMAY THOMAS DR ,  HENNING WOLFGANG DR ,  MAYER EDUARD DR ,  MECKEL WALTER DR ,  GOYERT WILHELM DR

IPC: C08G63/91 ,  C08G18/02 ,  C08G18/10 ,  C08G18/42 ,  C08G18/60 ,  C08G18/76 ,  C08G18/79 ,  C08G18/83 ,  C08K5/29 ,  C08L67/00 ,  C09J175/06

Abstract: The present invention relates to a process for stabilising plastics containing ester groups against degradation by heat and/or hydrolysis by incorporation of sterically hindered carbodiimides containing isocyanate terminal groups.

公开(公告)号：DE3661313D1

公开(公告)日：1989-01-05

申请号：DE3661313

申请日：1986-02-03

Applicant: BAYER AG

Inventor： NIEDERDELLMANN GEORG DR ,  GOYERT WILHELM DR ,  QUIRING BERND DR ,  WAGNER HANS DR

IPC: C08G18/00 ,  B29C43/00 ,  B29C47/00 ,  C08G18/08 ,  C08G18/40 ,  C08G18/64 ,  C08G18/65 ,  C08L75/00 ,  C08L75/04

Abstract: The present invention is directed to a process for the production of matte, non-blocking, thin-walled molded articles, films or tubes from polyurethane elastomers prepared from high molecular weight polyols which contain dispersed polyadducts based on polyisocyanate polyaddition products. The use of these high molecular weight polyols contained dispersed polyadducts allows for the preparation of thin-walled, molded articles which have reduced surface tackiness. The present invention is additionally directed to the molded articles produced by this process and to their use for forming polyurethane foam composites.

公开(公告)号：AT38994T

公开(公告)日：1988-12-15

申请号：AT86101347

申请日：1986-02-03

Applicant: BAYER AG

Inventor： NIEDERDELLMANN GEORG DR ,  GOYERT WILHELM DR ,  QUIRING BERND DR ,  WAGNER HANS DR

IPC: C08G18/00 ,  B29C43/00 ,  B29C47/00 ,  C08G18/08 ,  C08G18/40 ,  C08G18/64 ,  C08G18/65 ,  C08L75/00 ,  C08L75/04

公开(公告)号：DE3274986D1

公开(公告)日：1987-02-12

申请号：DE3274986

申请日：1982-10-23

Applicant: BAYER AG

Inventor： QUIRING BERND DR ,  GOYERT WILHELM DR ,  WAGNER HANS DR ,  HEIDINGSFELD HERBERT

IPC: C08G18/00 ,  B29C33/62 ,  B29C47/02 ,  B29C47/94 ,  B29C49/00 ,  C08G18/38 ,  C08G18/40 ,  C08G18/61 ,  C08G18/65 ,  C08J5/18 ,  C08L75/00

公开(公告)号：DE3063302D1

公开(公告)日：1983-07-07

申请号：DE3063302

申请日：1980-06-18

Applicant: BAYER AG

Inventor： QUIRING BERND DR ,  WENZEL WOLFGANG DR ,  NIEDERDELLMANN GEORG DR ,  WAGNER HANS DR ,  GOYERT WILHELM DR

IPC: C08G18/00 ,  C08G18/08 ,  C08G18/30 ,  C08G18/65 ,  C08G18/71

Abstract: The present invention relates to a process for the preparation of polyurethane ureas from relatively high molecular weight polyols, diisocyanates, water as chain lengthening agent and optionally short chain glycols in a multishaft extruder equipped with kneading elements.

公开(公告)号：DE3113385A1

公开(公告)日：1982-10-21

申请号：DE3113385

申请日：1981-04-02

Applicant: BAYER AG

Inventor： GOYERT WILHELM DR ,  FLEIGE WOLFGANG ,  HOPPE HANS-GEORG ,  WAGNER HANS DR

IPC: C08J5/18 ,  C08K3/22 ,  C08K5/02 ,  C08K5/04 ,  C08K5/52 ,  C08K13/02 ,  C08L75/04 ,  H01B3/30 ,  C08K5/17

公开(公告)号：DE2842806A1

公开(公告)日：1980-04-10

申请号：DE2842806

申请日：1978-09-30

Applicant: BAYER AG

Inventor： NIEDERDELLMANN GEORG DR ,  GOYERT WILHELM DR ,  MEISERT ERNST DR ,  EITEL ALFRED DR ,  WAGNER HANS DR ,  HESPE HANS DR

IPC: B01J19/20 ,  C08G18/08 ,  C08G18/66

Abstract: The present invention relates to an improved continuous process for the preparation of polyurethane elastomers which are distinguished from the products produced by known processes by increased elasticity, reduced shrinkage, higher rigidity (limit bending stress), improved cold notched bar impact resistance and good thermal stability.

公开(公告)号：DE2817457A1

公开(公告)日：1979-10-31

申请号：DE2817457

申请日：1978-04-21

Applicant: BAYER AG

Inventor： QUIRING BERND DR ,  NIEDERDELLMANN GEORG DR ,  GOYERT WILHELM DR ,  WAGNER HANS DR

IPC: C08G18/10 ,  C08G18/61 ,  C08G18/65 ,  B29D7/02 ,  B29D7/14 ,  C08L75/04

Abstract: The invention is directed to a process extruding or melt roll calendering thermoplastic polyurethanes wherein the polyurethanes used are synthesized from p1 (a) one or more relatively high molecular weight substantially linear polyols having molecular weights in the range from 400 to 10,000 (b) diphenyl methane and/or hexamethylene diisocyanate and (c) a mixture of 85 to 99% by weight of 1,4-butane diol and 1 to 15% by weight of at least one co-extender selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, diethylene 1,2-propane diol, 1,3-butane diol, 1,6-hexane diol, 2-ethyl-1,3-hexane diol, 2,2-dimethyl-1,3-propane diol, 1,4-bis-hydroxymethyl cyclohexane, hydroquinone-bis-hydroxyethyl ether, and mixtures thereof, the equivalent ratio of NCO groups in component (B) to the Zerewitinoff-active hydrogen atoms in components (A) and (C) being from 0.9:1 to 1.2:1 and the molar ratio of component (A) to (C) being from 1:20 to 5:1.