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:
Apr. 24, 1979
Filed:
Apr. 26, 1978
James L Brewbaker, Midland, MI (US);
William A Sprenger, Coleman, MI (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
Low shrink and low profile reinforced plastic systems are prepared from vinyl ester resins by incorporating therein an additive having the formula: ##STR1## WHEREIN R.sub.1 and R.sub.2 are hydrogen, methyl or ethyl with the provision that, if either R.sub.1 or R.sub.2 is hydrogen, the other is methyl or ethyl, n and m are whole numbers such that said additive is soluble in said resin when uncured and insoluble in said resin when cured; and B is the residue of a hydroxyl containing initiating compound. Typical of such compounds are water, ethylene glycol, glycerine and phenol. The value of p is equal to or less than the number of hydroxyls in the initiating compound.