Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1993-02-12
1994-11-29
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
26433122, 524596, 528163, 528164, B29C 6714, C08K 714, C08G 1410
Patent
active
053688031
ABSTRACT:
A fibrous resinated panel is provided which when used in a closed environment releases relatively minor amounts of trimethylamines, aldehydes and phenolic compounds into the closed environment. The panel is formed by compressing a fibrous mat impregnated with a thermosetting resin system in a mold cavity defined between an upper and a lower inner mold surface at a temperature between 400.degree. to 600.degree. for 45 to 90 seconds whereby the thermosetting resin is substantially cured and the mat is shaped to conform to a desired contour prior to removing the mat from the mold cavity. The thermosetting resin system used to impregnate the mat includes an essentially aqueous A-stage form resole-melamine composition containing residues of free melamine(s) to free aldehyde(s) to free phenolic compound(s) in a molar equivalent ratio ranging from about 0.2:1.5:1 to about 0.8:3.5:1.
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Brow Mark J.
Pitsch Ronald P.
Davis Robert B.
Habelt William W.
United Technologies Automotive Inc.
Woo Jay H.
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