Polyisobutylenes and process for making same

Patent metadata

Field	Value
Publication number	US-9834622-B2
Application number	US-201715447371-A
Country	US
Kind code	B2
Filing date	Mar 2, 2017
Priority date	Nov 30, 2006
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

The present invention generally relates to alcohol-terminated polyisobutylene (PIB) compounds, and to a process for making such compounds. In one embodiment, the present invention relates to primary alcohol-terminated polyisobutylene compounds, and to a process for making such compounds. In still another embodiment, the present invention relates to polyisobutylene compounds that can be used to synthesize polyurethanes, to polyurethane compounds made via the use of such polyisobutylene compounds, and to processes for making such compounds. In yet another embodiment, the present invention relates to primary alcohol-terminated polyisobutylene compounds having two or more primary alcohol termini and to a process for making such compounds. In yet another embodiment, the present invention relates to primary terminated polyisobutylene compounds having two or more primary termini selected from amine groups or methacrylate groups.

First claim

What is claimed is:

1. A primary alcohol-terminated polyisobutylene compound according to the following formula:

where n and m are each independently selected from an integer in the range of from 2 to about 5,000.

2. The primary alcohol-terminated polyisobutylene compound of claim 1 , wherein n and m are each independently selected from an integer in the range of from about 7 to about 4,500.

3. The primary alcohol-terminated polyisobutylene compound of claim 1 , wherein n and m are each independently selected from an integer in the range of from about 10 to about 4,000.

4. The primary alcohol-terminated polyisobutylene compound of claim 1 , wherein n and m are each independently selected from an integer in the range of from about 15 to about 3,500.

5. The primary alcohol-terminated polyisobutylene compound of claim 1 , wherein n and me are each independently selected from an integer in the range of from about 25 to about 3,000.

6. The primary alcohol-terminated polyisobutylene compound of claim 1 , wherein n and m are each independently selected from an integer in the range of from about 75 to about 2,500.

7. The primary alcohol-terminated polyisobutylene compound of claim 1 , wherein n and m are each independently selected from an integer in the range of from about 100 to about 2,000.

8. The primary alcohol-terminated polyisobutylene compound of claim 1 , wherein n and m are each independently selected from an integer in the range of from about 250 to about 1,500.

9. The primary alcohol-terminated polyisobutylene compound of claim 1 , wherein n and m are each independently selected from an integer in the range of from about 500 to about 1,000.

Assignees

• Univ Akron

Inventors

• Kennedy Joseph
• Kwon Yongmoon
• Ummadisetty Subramanyam

Classifications

• C08F8/10

  Acylation · CPC title

• C08F8/00 Primary

  Chemical modification by after-treatment (graft polymers, block polymers, crosslinking with unsaturated monomers or with polymers C08F251/00 - C08F299/00; of conjugated diene rubbers C08C) · CPC title

• C08F10/10 Primary

  Isobutene · CPC title

• C08F8/20

  Halogenation · CPC title

• C07C17/013

  by addition of halogens · CPC title