Hot melt adhesive

Patent metadata

Field	Value
Publication number	US-9790409-B2
Application number	US-201514950253-A
Country	US
Kind code	B2
Filing date	Nov 24, 2015
Priority date	May 30, 2013
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

An object of the present invention is to provide a hot melt adhesive being environmentally-friendly, having excellent adhesion property to various substrates such as paper substrate and polyolefin substrate, as well having excellent thermal stability. The present invention relates to a hot melt adhesive comprising: (A) a polar functional group-modified polymer, (B) an aliphatic polyester-based resin, (C) an olefin-based polymer, and (D) a tackifier resin.

First claim

The invention claimed is:

1. A hot melt adhesive comprising:
(A) a polar functional group-modified polymer,
(B) an aliphatic polyester-based resin,
(C) an olefin-based polymer that is a solid at room temperature, and
(D) a tackifier resin.

2. The hot melt adhesive according to claim 1 , wherein the polar functional group is at least one functional group selected from the group consisting of an acid anhydride group, a maleic acid group, a carboxyl group, an amino group, an imino group, an alkoxysilyl group, a silanol group, a silyl ether group, a hydroxyl group and an epoxy group.

3. The hot melt adhesive according to claim 2 , wherein the polar functional group is at least one functional group selected from a maleic acid group or an amino group.

4. The hot melt adhesive according to claim 1 , wherein the aliphatic polyester-based resin (B) comprises at least one selected from a polylactic acid-based resin and poly(butylene succinate).

5. The hot melt adhesive according to claim 1 , comprising 5 to 60 parts by weight of component (C) to 100 parts by weight of total weight of components (A) to (D).

6. The hot melt adhesive according to claim 1 comprising:
(A) an amino group group-modified SEBS polymer,
(B) a polylactic acid resin,
(C) an ethylene copolymer having propylene, butene or octene comonomers, and
(D) a tackifier resin.

7. An article comprising the adhesive of claim 1 .

8. The article of claim 7 which is a vehicle interior.

9. A hot melt adhesive comprising:
(A) a polar functional group-modified olefin-based polymer that is an ethylene or α-olefin copolymer having 3 to 20 carbon atoms;
(B) an aliphatic polyester-based resin,
(C) an olefin-based polymer, and
(D) a tackifier resin.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Takenaka Makoto
• Takamori Ai
• Hayakawa Tadashi

Classifications

• C09J167/02

  Polyesters derived from dicarboxylic acids and dihydroxy compounds (C09J167/06 takes precedence) · CPC title

• C08L23/00

  Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers · CPC title

• C09J123/08

  Copolymers of ethene (C09J123/16 takes precedence) · CPC title

• C09J123/0815

  Copolymers of ethene with aliphatic 1-olefins · CPC title

• C09J7/35

  Heat-activated · CPC title