Hot melt adhesive based on low melting point polypropylene homopolymers and methods for making and using the adhesive

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United States of America Patent

PATENT NO 9783712
APP PUB NO 20160230055A1
SERIAL NO

15134517

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Abstract

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A hot melt adhesive for use on porous substrates, wherein the hot melt adhesive has

    about 10% to about 70% by weight of a polypropylene homopolymer having a DSC melting point of less than 100° C.;about 10% to about 60% of a first tackifying resin having a Ring & Ball Softening Point ofabout 95° C. to about 140° C.;about 0% to about 65% of a second tackifying resin that is different than the first tackifying resin;about 5% to about 50% of a plasticizer;about 1% to about 40% by weight of a secondary polymer which is either a semi crystalline polymer or wax with an enthalpy of fusion of greater than 30 Joules/gram;about 0.1% to about 5% of a stabilizer or antioxidant; wherein the components total 100% by weight of the composition, and the viscosity of the composition is equal to or less than about 20,000 centipoise (cP) at 163° C. (325° F.).

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Patent Owner(s)

  • BOSTIK INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hamann, Richard New Berlin, US 7 23
Rachow, Lianne Milwaukee, US 2 13

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