Addition condensation product, production method and use of same, polymerization vessel, and production method of polymer

Patent metadata

Field	Value
Publication number	US-11345651-B2
Application number	US-202117336854-A
Country	US
Kind code	B2
Filing date	Jun 2, 2021
Priority date	Jun 29, 2020
Publication date	May 31, 2022
Grant date	May 31, 2022

Abstract

Provided is an addition condensation product of an aromatic compound and a carbonyl compound. The addition condensation product includes an aromatic compound dimer in which two composition units derived from the aromatic compounds are bonded via one composition unit derived from the carbonyl compound and an aromatic compound multimer in which each of three or more composition units derived from the aromatic compounds is bonded via one composition unit derived from the carbonyl compound. A ratio of the aromatic compound dimer to the aromatic compound multimer is in the range of 1:75 to 1:1,000.

First claim

What is claimed is:

1. An addition condensation product of an aromatic compound and a carbonyl compound, the addition condensation product comprising:
an aromatic compound dimer in which two composition units derived from the aromatic compounds are bonded via one composition unit derived from the carbonyl compound; and
an aromatic compound multimer in which each of three or more composition units derived from the aromatic compounds is bonded via one composition unit derived from the carbonyl compound, wherein
a ratio of the aromatic compound dimer to the aromatic compound multimer is in a range of 1:75 to 1:1,000, and
the addition condensation product is a reaction product of the carbonyl compound in a range of 0.1 to 0.999 moles relative to 1 mole of the aromatic compound.

2. The addition condensation product according to claim 1 , wherein the aromatic compound is a naphthol.

3. The addition condensation product according to claim 1 , wherein the carbonyl compound is an aldehyde compound or a ketone compound.

4. The addition condensation product according to claim 1 , wherein
the aromatic compound is a compound represented by general formula (1) below and the carbonyl compound is an aldehyde compound represented by general formula (2) below:

where R 1 , R 2 , and R 3 each in the general formulae (1) and (2) each represent a hydrogen atom or a hydrocarbon group.

5. The addition condensation product according to claim 1 , wherein the aromatic compound is a-naphthol, and the carbonyl compound is formaldehyde.

6. A production method of an addition condensation product, the method comprising:
a step of mixing an aromatic compound, a carbonyl compound, and a catalyst in a reaction solvent such that an addition condensation reaction of the aromatic compound and the carbonyl compound is conducted to obtain the addition condensation product of the aromatic compound and the carbonyl compound, wherein
the addition condensation product includes an aromatic compound dimer in which two composition units derived from the aromatic compounds are bonded via one composition unit derived from the carbonyl compound and an aromatic compound multimer in which each of three or more composition units derived from the aromatic compounds is bonded via one composition unit derived from the carbonyl compound,
a ratio of the aromatic compound dimer to the aromatic compound multimer is in a range of 1:75 to 1:1,000, and
the addition condensation product is a reaction product of the carbonyl compound in a range of 0.1 to 0.999 moles relative to 1 mole of the aromatic compound.

7. The production method of the addition condensation product according to claim 6 , wherein the aromatic compound is a-naphthol, the carbonyl compound is formaldehyde, and the catalyst is an alkali metal hydroxide.

8. A polymerization vessel for polymerization of a monomer, wherein the polymerization vessel has an inner surface that is coated with a solution of the addition condensation product according to claim 1 , wherein said coated inner surface comes into contact with the monomer.

9. The polymerization vessel according to claim 8 , further comprising:
a reflux condenser to condense the monomer during polymerization.

10. The polymerization vessel according to claim 8 , wherein the monomer is a monomer having an ethylenic unsaturated group.

11. The polymerization vessel according to claim 10 , wherein the monomer having an ethylenic unsaturated group is vinyl chloride.

12. A production method of a polymer wherein the monomer is polymerized in the polymerization vessel according to claim 8 .

13. A polymer scale adhesion preventive agent, comprising:
the addition condensation product according to claim 1 .

14. The addition condensation product according to claim 1 , wherein the addition condensation product is a reaction product of the carbonyl compound in a range of 0.5 to 0.99 moles relative to 1 mole of the aromatic compound.

15. The addition condensation product according to claim 14 , wherein the aromatic compound is a naphthol.

16. The addition condensation product according to claim 14 , wherein the carbonyl compound is formaldehyde.

17. The addition condensation product according to claim 14 , wherein the aromatic compound is a-naphthol, and the carbonyl compound is formaldehyde.

18. The addition condensation product according to claim 14 , wherein the carbonyl compound is a ketone compound.

19. The addition condensation product according to claim 1 , wherein the carbonyl compound is a ketone compound.

20. The addition condensation product according to claim 1 , wherein the ratio of the aromatic compound dimer to the aromatic compound multimer is in a range of 1:80 to 1:400.

Assignees

• Shinetsu Chemical Co

Inventors

• Tsuchiya Yoshikatsu
• Yamanaka Kentaro
• Usuki Masahiro

Classifications

• C08F2/004

  by a prior coating on the reactor walls · CPC title

• C07C2602/10

  the other ring being six-membered, e.g. tetraline · CPC title

• C08G16/0225

  containing oxygen · CPC title

• C07C47/546 Primary

  polycyclic · CPC title

• C08G8/10 Primary

  with phenol · CPC title