Low application temperature amorphous poly-α-olefin adhesive
US-9193891-B2 · Nov 24, 2015 · US
Low application temperature amorphous poly-a-olefin adhesive
US9546304B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9546304-B2 |
| Application number | US-201514881385-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 13, 2015 |
| Priority date | Aug 26, 2010 |
| Publication date | Jan 17, 2017 |
| Grant date | Jan 17, 2017 |
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- Title
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Abstract
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It has been discovered that amorphous polybutene copolymers that have a softening point of from about 70 to about 105° C. and viscosity of less than about 1,900 cP at 190° C. possesses desirable properties and may be used to make a low application temperature hot melt adhesive for disposable absorbent articles.
First claim
Opening claim text (preview).
We claim: 1. A hot melt adhesive comprising at least 45 wt %, based on the adhesive, of an amorphous polybutene copolymer having (a) greater than about 50 wt % of 1-butene monomer; (b) comonomers of ethylene, hexene or octene; (c) a softening point of from about 70 to about 105° C.; (d) a viscosity of less than about 1,900 cP at 190° C., and (e) a tan δ value greater than 30 at 140° C. wherein the hot melt adhesive has a viscosity of less than about 6,000 cP at 150° C.
Assignees
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Classifications
- C09J123/18Primary
Homopolymers or copolymers of hydrocarbons having four or more carbon atoms · CPC title
Hot-melt adhesive · CPC title
organic · CPC title
Homopolymers or copolymers of propene · CPC title
- C09J123/20Primary
having four to nine carbon atoms · CPC title
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Frequently asked questions
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- What does patent US9546304B2 cover?
- It has been discovered that amorphous polybutene copolymers that have a softening point of from about 70 to about 105° C. and viscosity of less than about 1,900 cP at 190° C. possesses desirable properties and may be used to make a low application temperature hot melt adhesive for disposable absorbent articles.
- Who is the assignee on this patent?
- Henkel IP & Holding GmbH
- What technology area does this patent fall under?
- Primary CPC classification C09J123/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 17 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).