Alan R Hamilton

US Patent:

43861660, May 31, 1983

Filed:

May 7, 1981

Appl. No.:

6/261735

Inventors:

Gregory P. Peterson - Wheaton IL
Alan D. Hamilton - Aurora IL

Assignee:

Standard Oil Company (Indiana) - Chicago IL

International Classification:

C08G 1814

US Classification:

521 99

Abstract:

A process of producing a modified polyester foam having a density of 0. 5 to 40 pounds per cubic foot comprising mixing on a weight basis a polyol composition A comprising unsaturated polyester resin dissolved in a copolymerizable monomer containing 30-80% nonvolatile matter on a weight basis, at least one urethane reaction catalyst, at least one polyisocyanate trimerization catalyst, at least one organic compound functional as a peroxide decomposition catalysty, at least one low molecular weight polyol, and at least one silicone surface active agent, and an isocyanate composition B comprising a polyisocyanate, at least one organic peroxide functional as an unsaturated polyester resin curing catalyst, and a urethane reaction catalyst, at least one of compositions A and B containing a blowing agent, and allowing said mixture to cream and foam as a result of the heat generated by the trimerization of the polyisocyanate and the urethane reaction between isocyanate groups and hydroxyl groups in the polyols and unsaturated polyester, said heat being sufficient to cause gas generation from the blowing agent and cross-linking of the unsaturated polyester with the copolymerizable monomer. The products of the invention are especially suitable as foam board useful in building insulation.

US Patent:

41304519, Dec 19, 1978

Filed:

Apr 29, 1977

Appl. No.:

5/792320

Inventors:

Alan D. Hamilton - Aurora IL
Gregory P. Peterson - Carol Stream IL
Walter R. McGuire - Aurora IL

Assignee:

Standard Oil Company (Indiana) - Chicago IL

International Classification:

B65H 8100

US Classification:

156 86

Abstract:

In the process of manufacturing a pipe by winding either resin-free or resin-impregnated filaments or roving onto a mandrel in layers wherein there are both a resin curing step and changes both in direction and angle of winding of said filaments between layers at fixed locations described hereinafter as wind-stops, the improvement comprising providing a means such as a deformable or movable insert that 1) is capable of substantially withstanding the compressive forces arising from the winding of said filaments or roving upon the mandrel and remaining substantially uneffected by any temperature arising during manufacture of said pipe, 2) is substantially inert to said resin composition, 3) yields to the compressive forces which can arise due to shrinkage of said pipe during said resin curing step, and 4) is adapted to permit said shrinkage so as to avoid the creation of strains in the longitudinal direction of said pipe.