Sheet molding composition having controllable thickening

Details Sheet molding composition having controllable thickening Sheet molding composition having controllable thickening

1996-06-27

1998-05-05

Acquah, Samuel A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528272, 528296, 528300, 528302, 528303, 528306, 528307, 528308, 525 43, 525 44, 525168, 525437, 523514, 526323, 5263285, C08F 2000

Patent

active

057476071

ABSTRACT:
A sheet molding composition is provided which exhibits controllable thickening. The composition includes a low molecular weight polyester in which some of the chain ends have been endcapped with functional groups which are unable to react with the thickeners employed in the sheet molding composition. The sheet molding composition has a low viscosity of from about 6 to about 20 million centipoise which allows molding at low pressures of from about 100 to about 300 psi.

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patent: 5489481 (1996-02-01), Hager et al.
patent: 5541254 (1996-07-01), Hager et al.

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