Adhesive promoters and methods for use on polar textile to bond non-polar substrates

Patent metadata

Field	Value
Publication number	US-10414942-B2
Application number	US-201615740472-A
Country	US
Kind code	B2
Filing date	May 26, 2016
Priority date	Jun 30, 2015
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

The present disclosure provides a primer composition. In an embodiment, the primer composition includes a functionalized polyolefin, a functionalized styrenic block copolymer containing greater than or equal to 20 wt % polymerized styrene, a solvent composition and an isocyanate component. The primer composition is suitable for use as an adhesive layer between a substrate and a polyolefin layer.

First claim

We claim:

1. A primer composition comprising:
(A) a functionalized styrenic block copolymer comprising greater than, or equal to, 20 wt % polymerized styrene;
(B) a functionalized ethylene/α-olefin interpolymer;
(C) a solvent composition comprising a hydrocarbon solvent; and
(D) an isocyanate component selected from the group consisting of (i) an isocyanate compound, (ii) an isocyanate end-capped pre-polymer and (iii) combinations thereof.

2. The primer composition of claim 1 , wherein the functionalized styrenic block copolymer comprises 20 wt % to 60 wt % polymerized styrene.

3. The primer composition of claim 1 , wherein the functionalized styrenic block copolymer is selected from the group consisting of an anhydride-functionalized styrenic block copolymer, a carboxylic-acid-functionalized styrenic block copolymer, an hydroxy-functionalized styrenic block copolymer, an amine-functionalized styrenic block copolymer, and a combination thereof.

4. The primer composition of claim 1 , wherein the functionalized ethylene/α-olefin interpolymer is selected from the group consisting of the an anhydride-functionalized ethylene/α-olefin interpolymer, a carboxylic-acid-functionalized ethylene/α-olefin copolymer, an hydroxy-functionalized ethylene/α-olefin copolymer, an amine-functionalized ethylene/α-olefin copolymer, and a combination thereof.

5. The primer composition of claim 1 , wherein the hydrocarbon solvent is an aliphatic solvent.

6. The primer composition of claim 1 , wherein the solvent composition further comprises 0.5 wt % to 20 wt % of a polar solvent, based on the total weight of the solvent composition.

7. The primer composition of claim 1 , wherein the functionalized styrenic block copolymer is a maleic-anhydride-functionalized styrenic block copolymer comprising 20 wt % to 60 wt % polymerized styrene, the functionalized ethylene/α-olefin interpolymer is a maleic-anhydride-functionalized ethylene/octene copolymer, and the isocyanate component comprises the isocyanate compound.

8. The primer composition of claim 1 , wherein the primer composition has a Brookfield Viscosity of 1,000 cP to 5,000 cP at 23° C.

9. An article comprising at least one component formed from the primer composition of claim 8 .

10. The article of claim 9 , wherein the article further comprises a substrate.

Assignees

• Dow Global Technologies Llc

Inventors

• Wan Qichun
• Anderson Stephanie K
• Peart Patricia A
• Anderson Kyle D
• Li Yongfu
• Lipishan Colin

Classifications

• C09J151/006

  grafted on to block copolymers containing at least one sequence of polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• C09D151/006

  grafted on to block copolymers containing at least one sequence of polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• C08L2666/42

  Compounds containing phosphorus and sulfur · CPC title

• C08L2666/36

  Nitrogen-containing compounds · CPC title

• C08L2205/02

  containing two or more polymers of the same C08L -group · CPC title