Lubricant spray polymers

Patent metadata

Field	Value
Publication number	US-11142720-B2
Application number	US-202016854080-A
Country	US
Kind code	B2
Filing date	Apr 21, 2020
Priority date	Jun 17, 2016
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

Disclosed are copolymers of alkyl methacrylate monomers wherein said alkyl methacrylate monomers comprise at least:a. Monomers (A) selected from C6-C10 alkyl methacrylate monomers, andb. Monomers (B) selected from C10-C18 alkyl methacrylate monomers, wherein the mass ratio of Monomers (B) in the copolymer to Monomers (A) in the copolymer is about 99:1 to about 60:40 by weight. In some cases, the copolymers are of lauryl methacrylate and C8alkyl methacrylate. Also disclosed are methods for the preparation of the copolymers.

First claim

What is claimed is:

1. An uncrosslinked copolymer of alkyl methacrylate monomers wherein said alkyl methacrylate monomers comprise:
a. Monomers (A) selected from C6-C10 alkyl methacrylate monomers, and
b. Monomers (B) selected from C10-C18 alkyl methacrylate monomers, wherein the mass ratio of Monomers (B) in the copolymer to Monomers (A) in the copolymer is 99:1 to 60:40 by weight, wherein Monomers (A) and Monomers (B) are distinct from one another, wherein the copolymer contains not more than 3.0% by weight of a methyl methacrylate repeating unit, and wherein the copolymer is a substantially random copolymer and has an average root mean square radius of gyration from 100 nm to 200 nm as measured by hydrodynamic column chromatography-multi angle light scattering where tetrahydrofuran is used as a solvent,
wherein the copolymer has a weight average molecular weight of from 5,300,000 to 169,000,000 g/mol.

2. The copolymer of claim 1 wherein the mass ratio of the Monomers (A) and the Monomers (B) is about 80:20 Monomers (B) to Monomers (A).

3. The copolymer of claim 1 wherein the mass ratio of the Monomers (A) and the Monomers (B) is about 90:10 Monomers (B) to Monomers (A).

4. The copolymer of claim 1 wherein Monomers (B) are lauryl methacrylate.

5. The copolymer of claim 1 wherein Monomers (A) are C 8 alkyl methacrylate.

6. The copolymer of claim 5 wherein the C 8 alkyl methacrylate is 2-ethyl hexyl methacrylate.

7. The copolymer of claim 1 wherein Monomers (A) and Monomers (B) represent at least 75% by weight of the total weight of monomers used to prepare the copolymer.

8. The copolymer of claim 7 wherein the Monomers (A) and Monomers (B) represent at least 90% by weight of the total weight of monomers used to prepare the copolymer.

9. The copolymer of claim 7 wherein Monomers (A) and Monomers (B) represent at least 99% by weight of the total weight of monomers used to prepare the copolymer.

10. The copolymer of claim 1 wherein the copolymer comprises C12 alkyl methacrylate repeating units, C14 alkyl methacrylate repeating units, C16 alkyl methacrylate repeating units, C18 alkyl methacrylate repeating units and C8 alkyl methacrylate repeating units.

11. The copolymer of claim 1 wherein the copolymer contains not more than 1.0% by weight of methyl methacrylate repeating units.

12. The copolymer of claim 1 wherein the copolymer contains not more than 0.5% by weight of methyl methacrylate repeating units.

13. The copolymer of claim 1 wherein the copolymer has a weight average molecular weight of at least 6,400,000 g/mol and up to 169,000,000 g/mol.

14. An uncrosslinked copolymer of C 8 alkyl methacrylate and lauryl methacrylate, wherein the mass ratio of lauryl methacrylate monomers in the copolymer to C 8 alkyl methacrylate monomers in the copolymer is 99:1 to 60:40 by weight, and wherein the copolymer is a substantially random copolymer and has an average root mean square radius of gyration from 100 nm to 200 nm as measured by hydrodynamic column chromatography-multi angle light scattering where tetrahydrofuran is used as a solvent,
wherein the copolymer has a weight average molecular weight of from 5,300,000 to 169,000,000 g/mol.

15. The uncrosslinked copolymer of claim 1 wherein Monomers (B) are lauryl methacrylate and wherein Monomers (A) are 2-ethyl hexyl methacrylate and wherein the copolymer has a weight average molecular weight of from 5,300,000 to 92,000,000 g/mol.

16. The uncrosslinked copolymer of claim 1 wherein Monomers (B) are lauryl methacrylate and wherein Monomers (A) are 2-ethyl hexyl methacrylate and wherein the copolymer has a weight average molecular weight of from 6,400,000 to 149,000,000 g/mol.

17. The uncrosslinked copolymer of claim 1 wherein Monomers (B) are lauryl methacrylate and wherein Monomers (A) are 2-ethyl hexyl methacrylate and wherein the copolymer has a weight average molecular weight of from 7,600,000 to 132,000,000 g/mol.

18. The uncrosslinked copolymer of claim 1 wherein Monomers (B) are lauryl methacrylate and wherein Monomers (A) are 2-ethyl hexyl methacrylate and wherein the copolymer has a weight average molecular weight of from 8,100,000 to 129,000,000 g/mol.

19. The uncrosslinked copolymer of claim 1 wherein Monomers (B) are lauryl methacrylate and wherein Monomers (A) are 2-ethyl hexyl methacrylate and wherein the copolymer has a weight average molecular weight of from 6,400,000 to 146,000,000 g/mol.

20. The uncrosslinked copolymer of claim 1 wherein Monomers (B) are lauryl methacrylate and wherein Monomers (A) are 2-ethyl hexyl methacrylate and wherein the copolymer has a weight average molecular weight of from 9,700,000 to 169,000,000 g/mol.

Assignees

• Nouryon Chemicals Int Bv

Inventors

• Vadillo Damien Christian
• Philbin Michael Timothy
• Thomaides John Socrates
• He Qiwei
• Threlfall-Holmes Philip Nigel

Classifications

• C08F220/1812

  C12-(meth)acrylate, e.g. lauryl (meth)acrylate · CPC title

• C08F220/1808

  C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate · CPC title

• C10N2020/04

  Molecular weight; Molecular weight distribution · CPC title

• C08F220/1806

  C6-(meth)acrylate, e.g. (cyclo)hexyl (meth)acrylate or phenyl (meth)acrylate · CPC title

• C10M2209/084

  Acrylate; Methacrylate · CPC title