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:
Dec. 24, 2019
Filed:
Dec. 01, 2017
Rohm and Haas Electronic Materials Llc, Marlborough, MA (US);
Colin Hayes, Marlborough, MA (US);
Michael K. Gallagher, Hopkinton, MA (US);
Michelle Riener, Watertown, MA (US);
Rohm and Haas Electronic Materials, Marlborough, MA (US);
Abstract
The present invention provides methods of making low energy polymerizable monomers and resins for use in making dielectric materials. The methods comprise deprotecting or deacylating an organic alkali cleavable protecting group containing addition polymerizable, amine containing aromatic monomer or oligoaromatic phenol resin containing an organic alkali cleavable protecting group, such as a Cto Calkanoyl group, preferably, an acyl group, by hydrolyzing to remove the protecting group in organic alkali in a polar solvent containing an excess of alkali Cto Calkoxide and form a hydroxyl functional monomer or resin, followed by; reacting via nucleophilic substitution the resulting hydroxyl functional monomer or resin with an alpha-halide (α-halide) or strong acid conjugate leaving group containing arylcyclobutene compound in a polar solvent, to yield a product an arylcyclobutene-containing addition polymerizable or amine containing aromatic monomer or oligoaromatic phenol resin having an ether linkage from the cyclobutene ring to an aromatic group of the addition polymerizable aromatic monomer, aromatic amine or oligoaromatic phenol.