The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2025
Filed:
Jul. 02, 2020
Sika Technology Ag, Baar, CH;
Megumi Abe, Hiratsuka, JP;
Yuichi Matsuki, Hiratsuka, JP;
SIKA TECHNOLOGY AG, Baar, CH;
Abstract
An embodiment of the present technology is an isocyanate-based adhesive used for a surface-treated crystalline thermoplastic resin base material, the isocyanate-based adhesive having a value represented by (JIS-A hardness)/(strength at break [MPa])×(elongation at break (%))/100 of 2.0 to 70 after being cured by being allowed to stand still under a condition at 23° C. and 50% RH for 3 days, and the crystalline thermoplastic resin base material having a value represented by (δ/δ+δ) of 2.0 to 30.0. δ=γ−γand δ=|γ−γ|, γis a polar term of surface free energy before the surface treatment, γis a polar term of surface free energy after the surface treatment, γis a dispersion term of the surface free energy before the surface treatment, and γis a dispersion term of the surface free energy after the surface treatment.