Remeltable thermoset resin

Details Remeltable thermoset resin Remeltable thermoset resin

1995-08-29

1996-12-17

Clark, W. Robinson H.

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

Synthetic resins

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

525157, 525518, 525519, C08L 6128, C08L 3104

Patent

active

055854389

ABSTRACT:
Melamine thermoset resins with low formaldehyde volatiles display a remeltable solid phase, a liquid phase, and a cured solid phase. These resins are formulated from melamine, glycerol as a cross-linker, polyvinyl acetate homopolymer, and sucrose as a formaldehyde scavenger in an aqueous solvent. Optional ingredients for controlling the resin adhesive's crosslinking and/or curing rate include ethylene glycol, a pH buffering system such as citric acid/sodium diacetate, and an amine block sulfonic acid salt. The compositions are particularly useful as resins for coatings, saturations, and bonding of synthetic fibers into fabric mats, and display thermal stability and rigidity at temperatures ranging up to 370.degree. C.

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patent: 5182335 (1993-01-01), Da Re
patent: 5283266 (1994-01-01), Matsuo et al.
patent: 5368803 (1994-11-01), Brow et al.

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