Production of novel metal modified novolak resins and their use

Details Production of novel metal modified novolak resins and their use Production of novel metal modified novolak resins and their use

1978-12-11

1980-10-07

Gallagher, John J.

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

Synthetic resins

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

282 275, 427145, 427146, 427150, 427400, 428420, 428531, 428537, 428913, 428914, 528148, 528155, C08G 828

Patent

active

042269628

ABSTRACT:
A novel metal modified novolak resin is prepared. The metal modified novolak resin is an electron acceptor and is further characterized by its compatability with the surface properties of a paper substrate. The metal modified novolak resin comprises a reaction product of a novolak resin and a metal salt. The novolak resin is a reaction product of a mixture containing a para-substituted phenol selected from the group consisting of paraalkylphenols having alkyl groups of about 1 to about 12 carbon atoms, para-phenylphenol and mixtures thereof, salicylic acid and formaldehyde.
The novel metal modified novolak resin is prepared by heating a mixture containing one or more para-substituted phenols, salicylic acid, formaldehyde and an acid catalyst for a period of time sufficient to substantially completely react the phenols, salicylic acid and formaldehyde to form a melted novolak resin. The melted novolak resin is mixed with a zinc salt in an inert atmosphere to form the metal modified novolak resin.
The metal modified novolak resin prepared as above can be coated on a paper substrate to produce a pressure-sensitive paper.

REFERENCES:
patent: 3624038 (1971-11-01), Weidner
patent: 3732120 (1973-05-01), Brockett et al.
patent: 4025490 (1977-05-01), Weaver
patent: 4034128 (1977-07-01), Kelley

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