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1. WO1996005871 - MATERIAL COMPOSITION AND MOLDED ARTICLE

Publication Number WO/1996/005871
Publication Date 29.02.1996
International Application No. PCT/JP1995/001649
International Filing Date 21.08.1995
Chapter 2 Demand Filed 08.12.1995
IPC
A61L 29/06 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
29Materials for catheters or for coating catheters
04Macromolecular materials
06obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
C08G 18/10 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08G 18/48 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
40High-molecular-weight compounds
48Polyethers
C08G 18/65 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
CPC
A61L 29/06
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
29Materials for catheters, ; medical tubing, cannulae, or endoscopes; or for coating catheters
04Macromolecular materials
06obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
C08G 18/10
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08G 18/4854
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
40High-molecular-weight compounds
48Polyethers
4854Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
C08G 18/65
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
Y10T 428/1352
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
13Hollow or container type article [e.g., tube, vase, etc.]
1352Polymer or resin containing [i.e., natural or synthetic]
Y10T 428/139
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
13Hollow or container type article [e.g., tube, vase, etc.]
1352Polymer or resin containing [i.e., natural or synthetic]
139Open-ended, self-supporting conduit, cylinder, or tube-type article
Applicants
  • NIPPON ZEON CO., LTD. [JP/JP]; 6-1, Marunouchi 2-chome Chiyoda-ku Tokyo 100, JP (AllExceptUS)
  • YOKOYAMA, Tetsuo [JP/JP]; JP (UsOnly)
  • HIRAOKA, Kyoko [JP/JP]; JP (UsOnly)
  • KIDOKORO, Hiroto [JP/JP]; JP (UsOnly)
Inventors
  • YOKOYAMA, Tetsuo; JP
  • HIRAOKA, Kyoko; JP
  • KIDOKORO, Hiroto; JP
Agents
  • UCHIDA, Yukio; Uchida & Associates Sunny Port Shiba 1005 5-10, Shiba 2-chome Minato-ku Tokyo 105, JP
Priority Data
6/21954122.08.1994JP
7/20395018.07.1995JP
7/21015605.07.1995JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) MATERIAL COMPOSITION AND MOLDED ARTICLE
(FR) COMPOSITION D'UN MATERIAU ET ARTICLE MOULE CONSTITUE DUDIT MATERIAU
Abstract
(EN)
A material composition comprising (a) a polyfunctional isocyanate, (b) a compound having a molecular weight of 600 to 3,500 and two functional groups undergoing a polyaddition reaction with an isocyanate group, (c) a compound having a molecular weight of 500 or less and two functional groups undergoing a polyaddition reaction with an isocyanate group, and (d) a compound having a molecular weight of 700 or less and three functional groups undergoing a polyaddition reaction with an isocyanate group. A molded polymer article is produced by heating a mixture of component (a) with a part of component (b) to prepare a urethane prepolymer, and adding the rest of component (b) and components (c) and (d) to the prepolymer, followed by heating to effect a polyaddition reaction between component (a) and components (b), (c) and (d). The obtained article can be applied to the parts where a high degree of shrinkage is required, is lowly toxic, and has large tear strength, tensile strength and elongation and a small permanent set.
(FR)
L'invention concerne une composition de matériau comprenant: (a) un isocyanate polyfonctionnel, (b) un composé ayant un poids moléculaire de 600 à 3500 et possédant deux groupes fonctionnels subissant une réaction de polyaddition en présence d'un groupe isocyanate, (c) un composé ayant un poids moléculaire maximum de 500 et possédant deux groupes fonctionnels subissant une réaction de polyaddition en présence d'un groupe isocyanate, et (d) un composé ayant un poids moléculaire maximum de 700 et possédant trois groupes fonctionnels subissant une réaction de polyaddition en présence d'un groupe isocyanate. Selon l'invention, on produit un article polymère moulé en chauffant un mélange constitué du composant (a) et d'une partie du composant (b) pour produire un prépolymère uréthane, on ajoute le reste du composant (b) et les composants (c) et (d) au prépolymère produit, et on chauffe le mélange ainsi obtenu pour créer une réaction de polyaddition entre le composant (a) et les composants (b), (c) et (d). L'article obtenu peut être utilisé pour réaliser des pièces pour lesquelles un degré élevé de retrait est requis; il est peu toxique, très résistant à la déchirure, à la traction et à l'allongement, et sa déformation permanente est faible.
Also published as
Latest bibliographic data on file with the International Bureau