Thermosetting plastic foams and methods of product

专利名称：Thermosetting plastic foams and methods

of production thereof using adhesionadditives

发明人：James Thornsberry,Gregory Islas,Robert H.

Blanpied

申请号：US10615591申请日：20030709

公开号：US20040126564A1公开日：20040701

摘要：A rigid closed cell polyisocyanate-based foams is created by reacting at leastone organic polyisocyanate with compounds having at least two active hydrogen atoms inthe presence of an n-pentane blowing agent. When the foam is formed into a laminatedboard with facers, the foam formulation includes a sufficient amount of a common blendof cleaning solvent chemicals to cause a noticeable improvement in facer adhesion. Thechemicals used to improve facer adhesion are a standard blend of industrial cleaningsolvents called “Di-Basic Esters” or DBE. The actual chemical compounds in one modeof this mixture are the methyl esters of about 59% glutaric acid, about 20% succinic acid,and about 21% adipic acid. The minimum rate of addition of the Di-Basic Esters” [DBE]thought to be effective may be less than about 0.5 parts per hundred parts of polyol(pphpp). The currently preferred embodiments use add-on rates within the range ofabout 0.5 to about 5.0 pphpp, with the currently most preferred range being from about1.0 to about 3.0 pphpp. The blend of cleaning chemicals employed by the presentinvention surprisingly enhance the adhesion between the foam and the facer.

申请人：ATLAS ROOFING CORPORATION

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