Benzophenone derivative

Patent metadata

Field	Value
Publication number	US-2022017445-A1
Application number	US-201917297517-A
Country	US
Kind code	A1
Filing date	Dec 2, 2019
Priority date	Dec 17, 2018
Publication date	Jan 20, 2022
Grant date	—

Abstract

The present invention relates to a compound which is a benzophenone substituted with a hydroxyl-terminated alkylene oxide group (R) of formula 1:

where R is a combination of from 1 to 13 propylene oxide groups and from 5 to 20 ethylene oxide groups, with the proviso that the sum of the propylene oxide groups and the ethylene oxide groups is not greater than 25. The compound of the present invention provides a non-volatile, non-toxic photoinitiator that provides excellent gloss retention in exterior architectural coatings.

First claim

1 . A compound which is a benzophenone substituted with a hydroxyl-terminated alkylene oxide group (R) of formula 1:

where R is a combination of from 1 to 13 propylene oxide groups and from 5 to 20 ethylene oxide groups, with the proviso that the sum of the propylene oxide groups and the ethylene oxide groups is not greater than 25.

2 . The compound of claim 1 wherein the benzophenone substituted with the hydroxyl-terminated alkylene oxide group (R) is represented by formula 2:

where x is from 2 to 10; and y is from 6 to 18.

3 . The compound of claim 2 wherein x is from 2 to 8; and y is from 10 to 16; wherein y is greater x.

4 . The compound of claim 2 wherein the calculated Log P of R is in the range of from −4.0 to −1.2.

5 . The compound of claim 4 wherein the calculated Log P of R is in the range of from −3.5 to −1.3.

6 . A coating composition comprising an aqueous dispersion of a binder, a rheology modifier, an opacifying pigment, and from 0.04 to 2 weight percent, based on the weight of the coating composition of the compound of claim 1 .

Assignees

• Dow Global Technologies Llc
• Rohm & Haas

Inventors

• Belowich Matthew E
• Maurice Alvin M
• Stracke Jordan
• Westmeyer Mark D

Classifications

• C08F2/50

  with sensitising agents · CPC title

• C07C49/84 Primary

  containing ether groups, [IMAGE cpc-sch-C07C-0958.gif] groups,[IMAGE cpc-sch-C07C-0959.gif] groups, or[IMAGE cpc-sch-C07C-0960.gif] groups · CPC title

• C09D133/14

  of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen · CPC title

• C08F220/14 Primary

  Methyl esters {, e.g. methyl (meth)acrylate} · CPC title

• C08F220/18

  with acrylic or methacrylic acids · CPC title