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:
Jun. 18, 1991
Filed:
Jan. 24, 1989
Thera, Starnberg, DE;
Abstract
The present invention relates to a method for preparing a surface for bonding with a synthetic resin. In the method, a layer is applied onto a substrate surface by sand blasting with a composition comprising (A) 0.01 to 90% by weight of an optionally silanized material having a particle size less than 5 .mu.m and having a hardness greater than that of the substrate surface, and/or (B) 20 to 100% by weight of a silanized siliceous material having an average particle size of 2 to 200 .mu.m, and (C) the remainder of the sand blasting composition having an average particle size greater than 5 .mu.m, and optionally the layer is thereafter silanized. The invention is further directed to the above-mentioned composition.