C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 153/02 (2006.01) C09J 193/00 (2006.01)
Patent
CA 2201076
A hot melt adhesive composition comprising from about 5% to about 15% by weight of at least one radial styrene-isoprene-styrene block copolymer having the general configuration (pS-pI-pB)nX wherein n is a number greater than 2, said block copolymer having a molecular weight from about 90,000 to about 380,000, and preferably from about 100,000 to about 250,000, and a styrene content from about 15% to about 35% by weight, and preferably from about 20% to about 30% by weight; up to about 10% of a compatible polymer, wherein the total polymer content does not exceed 15%; from about 30% to about 60% by weight of at least one compatible tackifying resin; from about 20% to about 40% by weight of at least one compatible plasticizer; and from about 0.1% to about 2% by weight stabilizer.
Composition d'adhésif thermofusible comprenant environ de 5 à 15 % en poids d'au moins un copolymère de styrène-isoprène séquencé radial ayant la configuration générale (pS-pI-pB)nX, selon laquelle n est un nombre supérieur à 2. Ce copolymère séquencé possède : un poids moléculaire d'environ 90 000 à 380 000, et préférablement d'environ 100 000 à 250 000, ainsi qu'un contenu de styrène d'environ 15 à 35 % en poids, et préférablement d'environ 20 à 30 % en poids; jusqu'à environ 10 % d'un polymère compatible, le contenu total de polymères n'excédant pas 15 %; environ 30 à 60 % en poids d'au moins une résine collante compatible; environ 20 à 40 % en poids d'au moins un plastifiant compatible; et environ 0,1 à 2 % en poids d'un stabilisant.
Knutson Keith C.
Lindquist Jeffrey S.
H.b. Fuller Licensing & Financing Inc.
Rogers Law Office
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