Aromatic tackifier resin

Details Aromatic tackifier resin Aromatic tackifier resin

1994-11-03

1997-08-12

Lipman, Bernard

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

Synthetic resins

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

525338, 525339, C08F 802

Patent

active

056566980

ABSTRACT:
The invention comprises a hydrogenated hydrocarbon resin suitable as tackifier for acrylic adhesive polymers, having greater than 20% aromatic protons after hydrogenation, a z-average molecular weight of less than about 1800, a narrow molecular weight distribution, typically of less than or equal to 2.1, and a softening point of from 40.degree. C. to about 120.degree. C. It additionally comprises a method for preparing a hydrogenated aromatic tackifier resin suitable as tackifier for acrylic adhesive polymers comprising the steps of: a) polymerizing under Friedel-Crafts polymerization conditions stem-cracked petroleum distillates, or fractions thereof, having boiling points between about 135.degree. C. and 220.degree. C. and containing at least 40% of by weight vinyl aromatic monomer contents, in the presence of a chain transfer agent; and b) catalytically hydrogenating the results of a) such that at least 75% of the aromaticity is retained. The invention also comprises the use of this hydrogenated hydrocarbon resin as tackifier for an adhesive composition comprising one or more adhesive base polymers selected from acrylic copolymers, styrene block copolymers and ethylene-vinyl ester copolymers wherein improved adhesive properties are observed.

REFERENCES:
patent: 3554940 (1971-01-01), Arakawa et al.
patent: 3700758 (1972-10-01), Johnson, Jr. et al.
patent: 3701760 (1972-10-01), Hagemeyer, Jr. et al.
patent: 3926878 (1975-12-01), Shimizu et al.
patent: 4078132 (1978-03-01), Lepert
patent: 4514554 (1985-04-01), Huges et al.
patent: 4629766 (1986-12-01), Malatesta et al.
patent: 4677176 (1987-06-01), Evans et al.
patent: 4683268 (1987-07-01), Ahner
patent: 4916192 (1990-04-01), Hentges
patent: 4952639 (1990-08-01), Minomiya et al.
patent: 5106902 (1992-04-01), Yang

Affiliated with

Also associated with

Rating

Aromatic tackifier resin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aromatic tackifier resin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aromatic tackifier resin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-161238