Complex and process for preparing complex

Patent metadata

Field	Value
Publication number	US-10519170-B2
Application number	US-201715850905-A
Country	US
Kind code	B2
Filing date	Dec 21, 2017
Priority date	Dec 22, 2016
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

[In the structural formula (2), M1 to M4 are identical to or different from each other and represent a metal atom, R1 to R6 are identical to or different from each other and represent a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms or an alkynyl group having 2 to 18 carbon atoms, and at least two of R1 to R6 are the alkenyl group having 2 to 18 carbon atoms or the alkynyl group having 2 to 18 carbon atoms.].

First claim

The invention claimed is:

1. A complex of formula (1):
[M 4 O(RCOO) 6 ] n   (1)

wherein in the formula (1), M is zinc, R is —CH═CH 2 , and n is an integer of 1 to 8.

2. A complex of structural formula (2):

wherein in the structural formula (2), M 1 to M 4 are zinc, and R 1 to R 6 are —CH═CH 2 .

3. A process for preparing a complex, comprising a step of conducting a reaction between a compound of formula (3) and a metal oxide of formula (4) in a solvent:
[M 5 (RCOO) x ].yH 2 O  (3)

M 6 a O b   (4)

wherein in the formula (3), M 5 is zinc, R is —CH═CH 2 , x is two, y is zero; and in the formula (4), M 6 is zinc, a is one, and b is one, wherein the prepared complex is a complex of formula (1).

4. The process for preparing a complex according to claim 3 , wherein dichloromethane is used as the solvent.

5. The process for preparing a complex according to claim 3 , wherein a molar ratio ((3)/(4)) of the compound of the formula (3) to the metal oxide of the formula (4) ranges from 3/2 to 5/1.

6. The process for preparing a complex according to claim 3 , wherein the reaction is conducted at a temperature in a range from −20° C. to 100° C.

7. The process for preparing a complex according to claim 3 , wherein a complex of structural formula (2) is prepared:

wherein in the structural formula (2), M 1 to M 4 are zinc and R 1 to R 6 are —CH═CH 2 .

8. The process for preparing a complex according to claim 3 , comprising: a step of dissolving or dispersing the compound of the formula (3) and the metal oxide of the formula (4) in a first solvent and stirring the resultant reaction liquid; a step of removing an insoluble substance from the reaction liquid; and a step of removing the solvent from the reaction liquid.

9. The process for preparing a complex according to claim 3 , further comprising a step of purifying the obtained complex.

10. The process for preparing a complex according to claim 9 , wherein the step of purifying the obtained complex is a step of removing the compound of the formula (3) from the reaction liquid; or a step of performing reprecipitation of a mixture of the complex and the compound of the formula (3) obtained in the preparing process.

Assignees

• Dunlop Sports Co Ltd
• Sumitomo Rubber Ind

Inventors

• Tadaoka Hiroshi
• Shiga Kazuyoshi

Classifications

• C07F3/06 Primary

  Zinc compounds · CPC title

• C07C57/04

  Acrylic acid; Methacrylic acid · CPC title

• C01P2002/87

  by chromatography data, e.g. HPLC, gas chromatography · CPC title

• C07C57/18

  with only carbon-to-carbon triple bonds as unsaturation · CPC title

• C07F3/003

  without C-Metal linkages · CPC title