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1. WO2020199175 - SOLVENTLESS ADHESIVE COMPOSITION AND METHOD FOR PREPARING THEREOF

Publication Number WO/2020/199175
Publication Date 08.10.2020
International Application No. PCT/CN2019/081413
International Filing Date 04.04.2019
IPC
C09J 175/06 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
175Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
04Polyurethanes
06from polyesters
C09J 175/08 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
175Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
04Polyurethanes
08from polyethers
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 18/12 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
12using two or more compounds having active hydrogen in the first polymerisation step
Applicants
  • DOW GLOBAL TECHNOLOGIES LLC [US]/[US]
  • BAI, Chenyan [CN]/[CN] (SC)
Inventors
  • BAI, Chenyan
Agents
  • SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SOLVENTLESS ADHESIVE COMPOSITION AND METHOD FOR PREPARING THEREOF
(FR) COMPOSITION ADHÉSIVE SANS SOLVANT ET SON PROCÉDÉ DE PRÉPARATION
Abstract
(EN)
A solventless adhesive composition is provided. The solventless adhesive composition comprises (A) an isocyanate prepolymer having a side chains represented by -R2-(0-R1-0)n-R3 and (B) an isocyanate-reactive component, and exhibits improved bond strength, heat seal strength, adhesive COF property and optical appearance. A laminate product prepared with said solventless adhesive composition as well the method for preparing the laminate product are also provided.
(FR)
L'invention concerne une composition adhésive sans solvant. La composition adhésive sans solvant comprend (A) un prépolymère d'isocyanate ayant une chaîne latérale représentée par -R2-(0-R1-0)n-R3 ainsi qu'un (B) composant réactif vis-à-vis de l'isocyanate et présente une force de liaison améliorée, une force d'étanchéité à la chaleur, une propriété de COF adhésive et un aspect optique. L'invention concerne également un produit stratifié préparé avec ladite composition adhésive sans solvant ainsi que le procédé de préparation du produit stratifié.
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