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Title:
ADHESIVE COMPOSITION, ADHESIVE SHEET AND LAMINATE BODY
Document Type and Number:
WIPO Patent Application WO/2020/230774
Kind Code:
A1
Abstract:
An adhesive composition is provided which can achieve good metal corrosion prevention, UV ray absorption, reworking, step filling , adhesive strength, and holding strength properties. The present invention pertains to an adhesive composition that contains a copolymer of a non-crosslinkable monomer and a crosslinking monomer having a functional group, a crosslinking agent, and a UV light-absorbing agent. The copolymer includes, as a unit constituted from the non-crosslinkable monomer, a monomer-derived unit having a glass transition temperature of more than –60°C and no more than –20°C. The amount of monomer-derived units in the copolymer that is a unit constituted by the non-crosslinkable monomer and has a glass transition temperature of at least 0°C when a homopolymer is no more than 10% by mass. The weight average molecular weight of the copolymer is no more than 650,000 and the UV light-absorbing agent is either liquid or oil at 23°C.

Inventors:
YAMAGUCHI TAKAMICHI (JP)
YAMAMOTO MASAYUKI (JP)
Application Number:
PCT/JP2020/018920
Publication Date:
November 19, 2020
Filing Date:
May 12, 2020
Export Citation:
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Assignee:
OJI HOLDINGS CORP (JP)
International Classes:
B32B27/00; B32B27/18; B32B27/26; C09J7/38; C09J7/40; C09J11/06; C09J133/14; C09J201/02
Foreign References:
JP2019065163A2019-04-25
JP2019065253A2019-04-25
JP2012014043A2012-01-19
JP2014196377A2014-10-16
JP2013127012A2013-06-27
Attorney, Agent or Firm:
SIKs & Co. (JP)
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