Title:
NOVEL METHOD FOR MANUFACTURING PETROLEUM RESIN SUITABLE FOR MANUFACTURING PRINTING INK, VARNISH AND PAINT
Document Type and Number:
Japanese Patent JPH0229411
Kind Code:
A
Abstract:
PURPOSE: To enhance the softening point, and improve the dilution and solubility to aliphatic solvents by dissolving a dicyclopentadiene resin to a specified aromatic fraction followed by cation copolymerization.
CONSTITUTION: A dicyclopentadiene fraction is thermally polymerized in the presence of an aromatic solvent at a temp. of 240-270°C for 2-10 hours to provide a dicyclopentadiene resin (A). The component A is dissolved in (B) a C6-12 aromatic fraction so that the weight ratio of A/B is 0-100, and then cation- copolymerized at 50°C or lower under the presence of a Lewis acid (e.g.: BF3) of 0.02-3 wt.% to the components A, B.
Inventors:
POORU BADEIE
JIYANNMARII SHIBEERU
JIYANNMARII SHIBEERU
Application Number:
JP14095789A
Publication Date:
January 31, 1990
Filing Date:
June 02, 1989
Export Citation:
Assignee:
NORSOLOR SA
International Classes:
C08F232/06; C08F32/00; C08F240/00; C09D11/10; C09D157/00; C09D157/02; (IPC1-7): C08F232/06; C08F240/00; C09D11/10; C09D157/02
Attorney, Agent or Firm:
Takashi Koshiba
Next Patent: JPH0229412