Chemical resistant polyurethane adhesive
US-2018010024-A1 · Jan 11, 2018 · US
Method of producing five-carbon ring-containing compound and five-carbon ring derivative-containing polyurethane, and five-carbon ring derivative-containing polyurethane
US10654965B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10654965-B2 |
| Application number | US-201715828457-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 1, 2017 |
| Priority date | Aug 10, 2017 |
| Publication date | May 19, 2020 |
| Grant date | May 19, 2020 |
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- Title
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- Abstract
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Abstract
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A method of producing a five-carbon ring derivative-containing polyurethane involves introducing a DCPD-derived 5-carbon cyclic compound into a polyurethane material and effectuating polymerization in the presence of a solvent of a low boiling point and low toxicity to produce a five-carbon ring derivative-containing polyurethane of a high molecular weight.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of producing a five-carbon ring derivative-containing polyurethane, the method comprising the steps of: (a) allowing a diisocyanate compound to react with a polyethylene glycol compound and thus produce a prepolymer; and (b) allowing the prepolymer to react continuously with a 5-carbon cyclic compound expressed by formula (I) or formula (II) below, and thus produce a five-carbon ring derivative-containing polyurethane. 2. The method of claim 1 , wherein, the diisocyanate compound of step (a) is one selected from the group consisting of methylene di-p-phenyl diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, and dicyclohexylmethane-4-4′-diisocyanate. 3. The method of claim 1 , wherein the five-carbon ring derivative-containing polyurethane has a molecular weight of 55,000˜200,000. 4. The method of claim 1 , wherein the diisocyanate compound is methylene di-p-phenyl diisocyanate, the polyethylene glycol compound is polycaprolactone, and the five-carbon ring derivative-containing polyurethane is a polymer expressed by formula (IV) below, where R is one of groups expressed by formulas below, wherein y>0. 5. The method of claim 4 , wherein n segment has a molecular weight of 1,000˜4,000. 6. The method of claim 4 , wherein x segment to y segment weight ratio is expressed by y/(x+y)=0.4˜0.6. 7. A five-carbon ring derivative-containing polyurethane, produced by the method of claim 1 .
Assignees
Inventors
Classifications
containing other rings in addition to the six-membered aromatic rings {, e.g. cyclohexylphenol} · CPC title
- C08G18/3215Primary
containing aromatic groups or benzoquinone groups · CPC title
containing two or more aromatic rings · CPC title
containing only one alkylene bisphenyl group · CPC title
Hydroxycarboxylic acid or ester · CPC title
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- What does patent US10654965B2 cover?
- A method of producing a five-carbon ring derivative-containing polyurethane involves introducing a DCPD-derived 5-carbon cyclic compound into a polyurethane material and effectuating polymerization in the presence of a solvent of a low boiling point and low toxicity to produce a five-carbon ring derivative-containing polyurethane of a high molecular weight.
- Who is the assignee on this patent?
- Nat Chung Shan Inst Science & Tech
- What technology area does this patent fall under?
- Primary CPC classification C08G18/3215. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 19 2020 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).