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:
Nov. 27, 2018
Filed:
Jul. 28, 2014
Boral Ip Holdings (Australia) Pty Limited, North Sydney, AU;
Guy Crocco, New Braunfels, TX (US);
Russ K. Majors, San Marcos, TX (US);
Russell L. Hill, San Antonio, TX (US);
Brian Shaw, Elmendorf, TX (US);
Boral IP Holdings (Australia) PTY Limited, North Sydney, AU;
Abstract
Polyurethane composites and methods of preparation are described herein. The methods of making the polyurethane composite can include mixing () at least one isocyanate selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, () at least one polyol, () an inorganic filler, and () an evaporative coolant in an extruder to form a mixture. The method also include extruding the mixture into a mold cavity, generating heat in the mold cavity from the reaction of the at least one isocyanate and the at least one polyol, and allowing the evaporative coolant to migrate to an interface between the mixture and the interior mold surface. The temperature of the mixture causes evaporation of the evaporative coolant at the interface thereby removing heat at the interface. Suitable evaporative coolants for use in the methods of making the polyurethane composites include hydrofluorocarbons and hydrochlorofluorocarbons.