Patent ID: 11958967
Assignee: TERAOKA SEISAKUSHO CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. An acrylic resin composition comprising a polymer containing a unit derived from a monomer represented by the following formula (1):, R1 represents a hydrogen atom or a methyl group, R2 represents an alkylene group having 2 to 4 carbon atoms, and R3 represents an alkyl group having 1 to 10 carbon atoms, n represents an integer of 1,
wherein the proportion of the unit derived from the monomer represented by formula (1) contained in the polymer is 60 to 90% by mass with respect to 100% by mass of the total monomer units constituting the polymer,
the polymer further comprises a unit derived from a carboxylic acid-containing (meth)acrylic monomer and the proportion of the unit derived from the carboxylic acid-containing (meth)acrylic monomer contained in the polymer is 0% by mass or 12.5 to 20% by mass with respect to 100% by mass of the total monomer units constituting the polymer,
the polymer further comprises a unit derived from (meth)acrylic acid alkyl ester, and the proportion of the unit derived from (meth)acrylic acid alkyl ester contained in the polymer is 0% by mass or 10 to 27.5% by mass with respect to 100% by mass of the total monomer units constituting the polymer,
the polymer comprises at least one of the unit derived from the carboxylic acid-containing (meth)acrylic monomer and the unit derived from (meth)acrylic acid alkyl ester,
the acrylic resin composition further comprises at least one crosslinking agent selected from the group consisting of polyfunctional (meth)acrylic monomers, polyfunctional (meth)acrylic oligomers, and bifunctional or higher functional glycidyl group-containing compounds, and
the tensile strength after the acrylic resin composition is immersed in oleic acid for 24 hours is 50% or more of the value of the tensile strength before being immersed in oleic acid.