Title:
TWO-COMPONENT POLYURETHANE ADHESIVE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/216173
Kind Code:
A1
Abstract:
A two-component thermally-conductive polyurethane adhesive comprises component A and component B. The component A is an NCO-terminated prepolymer made by reacting at least one polyol of Mn greater than 2,000 Da and an OH functionality of 2-3, with 30-45 wt%, based on the total weight of Component A, of at least one polyisocyanate selected from aliphatic polyisocyanates and mixtures of 2, 4'-MDI and 4, 4'-MDI. The component B comprises at least one polyol of Mn of less than 1,000 Da and an OH functionality of at least 2. An adhered assembly comprises a first substrate and a second substrate adhered to the first substrate by the polyurethane adhesive made by mixing together the component A and component B.
Inventors:
ZHANG ZHENGHE (CN)
Application Number:
PCT/CN2022/092363
Publication Date:
November 16, 2023
Filing Date:
May 12, 2022
Export Citation:
Assignee:
ROHM AND HAAS ELECTRONIC MAT SHANGHAI LTD (CN)
International Classes:
C09J175/08; C08G18/10; C08G18/12; C08G18/48; C08G18/70; C08G18/72; C08G18/73; C08G18/76
Foreign References:
| CN104449540A | 2015-03-25 | |||
| CN104153204A | 2014-11-19 | |||
| CN111808548A | 2020-10-23 | |||
| US20130025784A1 | 2013-01-31 |
Other References:
CHEN SHUANG LIAN, CHEN GUANG XUE, CHEN QI FENG, JIA CHUN JIANG, WANG QIN: "The Preparation of Solvent-Free Polyurethane Laminating Adhesive with Mixed-Polyols", ADVANCED MATERIALS RESEARCH (DURNTEN-ZURICH, SWITZERLAND), SCITEC PUBLICATIONS, vol. 549, 1 January 2012 (2012-01-01), pages 177 - 182, XP009550254, ISSN: 1662-8985, DOI: 10.4028/www.scientific.net/AMR.549.177
YAN JIN, CHEN GUANG XUE, CHEN SHUANG LIAN, WU DA QING: "Study on a Solvent-Free PBA/CO-Based PU Adhesive for Aluminum-Plastics Compounding", ADVANCED MATERIALS RESEARCH (DURNTEN-ZURICH, SWITZERLAND), SCITEC PUBLICATIONS, vol. 380, 1 January 2011 (2011-01-01), pages 294 - 297, XP009550253, ISSN: 1662-8985, DOI: 10.4028/www.scientific.net/AMR.380.294
YAN JIN, CHEN GUANG XUE, CHEN SHUANG LIAN, WU DA QING: "Study on a Solvent-Free PBA/CO-Based PU Adhesive for Aluminum-Plastics Compounding", ADVANCED MATERIALS RESEARCH (DURNTEN-ZURICH, SWITZERLAND), SCITEC PUBLICATIONS, vol. 380, 1 January 2011 (2011-01-01), pages 294 - 297, XP009550253, ISSN: 1662-8985, DOI: 10.4028/www.scientific.net/AMR.380.294
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
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