Process for preparation of low-dusting epoxy curing agents based

Details Process for preparation of low-dusting epoxy curing agents based Process for preparation of low-dusting epoxy curing agents based

1984-02-28

1984-12-25

Nielsen, Earl A.

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

Synthetic resins

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

528115, 528365, 252182, C08G 5942

Patent

active

044905114

ABSTRACT:
The invention provides a low-dusting anhydride curing agent blend for epoxy resins comprising a solid acid anhydride (trimellitic anhydride) and a normally liquid acid anhydride (methyl hexahydrophthalic anhydride. The invention further provides processes for preparing the anhydride blends and to curable epoxy compositions thereof.

REFERENCES:
patent: 2965610 (1960-12-01), Newey
patent: 3388185 (1968-06-01), Goldberg et al.

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