Phenolic-resin-modified cyclopentadiene resins, process for the preparation thereof and use thereof

• US 5,376,719 A
• Filed: 04/04/1994
• Issued: 12/27/1994
• Est. Priority Date: 04/05/1993
• Status: Expired due to Fees

• Current Assignee: Hoechst Aktiengesellschaft (Sanofi )
• Original Assignee: Hoechst Aktiengesellschaft (Sanofi )
• Inventors: Bender, Albert
• Primary Examiner(s): JAGANNATHAN, VASUDEVAN SALEM
• Application Number:
  US08/222,673
• Time in Patent Office: 267 Days
• Field of Search: 525/54.4, 525/139, 528/158.5, 528/159, 106/30 R
• US Class Current: 525/54.4
• CPC Class Codes: C08G 16/00 Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 with polynitriles C08G69/38
• CPC Class Codes: C08G 8/28 Chemically modified polycondensates
• CPC Class Codes: C09D 11/10 based on artificial resins

Abstract

Phenolic-resin-modified cyclopentadiene resins, process for the preparation thereof and use thereof

Phenolic-resin-modified cyclopentadiene resins which can be used as binder in printing inks can be advantageously directly prepared from

a) from 20 to 80% by weight of cyclopentadiene compounds,

b) from 1 to 40% by weight of natural resin acids,

c) from 1 to 60% by weight of phenols and

d) from 1 to 20% by weight of aldehydes in the presence of

e) from 0.01 to 1% by weight of basic alkali metal compounds.

The catalysis by basic alkali metal compounds makes possible the quantitative reaction of c) and d) in the reaction mixture of a) and b).

Claims

1. A phenolic-resin-modified cyclopentadiene resin which is prepared from

a) from 20 to 80% by weight of cyclopentadiene compounds,

b) from 1 to 40% by weight of natural resin acids,

c) from 1 to 60% by weight of phenols and

d) from 1 to 20% by weight of aldehydes in the presence of

e) from 0.01 to 1% by weight of basic lithium compounds.

2. A printing ink containing as a binder the phenolic-resin-modified-cyclopentadiene resins of claim 1.