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Title:
HOT MELT ADHESIVE
Document Type and Number:
Japanese Patent JP2012180525
Kind Code:
A
Abstract:

To provide a hot melt adhesive applicable at low temperature, having high heat resistance.

The hot melt adhesive applicable at low temperature includes: 20-40 wt.% of a polymer blend (a) that contains an n-butylacrylate copolymer (i) comprising 15-35 wt.% of n-butylacrylate and an ethylene-vinylacetate copolymer (ii) comprising 10-45 wt.% of vinylacetate; 25-45 wt.% of a tackifier resin (b) having a softening point of 90-120°C; and 25-45 wt.% of a wax (c) having a melting point of 54-77°C, wherein the adhesive is based on the total weight of the wt.% (percent by weight). The adhesive has viscosity from 0.8 to 1.5 Pa s at adhesive-applying temperature of ≤121°C, wherein the heat stress value of the linked adhesive and the adhesive-applying temperature, shown by temperature at which stressed linking is broken, are separated by only 38°C(100°F).


Inventors:
GOOD DAVID J
MEHAFFY JUSTIN A
HANER DALE L
PATEL JAGRUTI
MORRISON BRIAN D
WILLYBIRO FIDELIN N
Application Number:
JP2012099832A
Publication Date:
September 20, 2012
Filing Date:
April 25, 2012
Export Citation:
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Assignee:
HENKEL AG & CO KGAA
International Classes:
C09J133/06; C09J201/00; C09J7/02; C09J9/00; C09J123/08; C09J131/04; C08L23/08; C08L91/06
Domestic Patent References:
JPH08253751A1996-10-01
JPH08231935A1996-09-10
JP2002003804A2002-01-09
JPH11323288A1999-11-26
JP2002356665A2002-12-13
JP2001187874A2001-07-10
JP2001187873A2001-07-10
JPH08253751A1996-10-01
JPH08231935A1996-09-10
JP2002003804A2002-01-09
JPH11323288A1999-11-26
JP2002356665A2002-12-13
JP2001187874A2001-07-10
JP2001187873A2001-07-10
Attorney, Agent or Firm:
加藤 憲一
古賀 哲次
永坂 友康
石田 敬
青木 篤
高橋 正俊