Novel markers for aqueous compositions

Patent metadata

Field	Value
Publication number	US-2018148564-A1
Application number	US-201715788847-A
Country	US
Kind code	A1
Filing date	Oct 20, 2017
Priority date	Nov 30, 2016
Publication date	May 31, 2018
Grant date	—

Abstract

The present invention provides aqueous polymer compositions containing one or more, or, preferably, two or more markers selected from a C1-C12 alkyl phenyl ether having a formula Ph(R 2 )m(OR 1 ) r , wherein Ph is an aromatic ring containing group having from six to nine carbon atoms, R 1 is a C1-C12 alkyl group, R 2 is a C1-C12 alkyl group, m is an integer of from 0 to 5, n is an integer of from 1 to 3, and (m+n) is an integer of from 1 to 6. The markers are readily detectable, such as by mass spectroscopy, upon solvent extraction and separation from the aqueous polymer compositions, or from dried or cured coatings, film or layers thereof.

First claim

We claim:

1 . An aqueous composition comprising (i) one or more aqueous polymers, and (ii) from 100 ppb to 10 ppm of one or more compounds selected from a C 1 -C 12 alkyl phenyl ether having a formula Ph(R 2 ) m (OR 1 ) n , wherein Ph is an aromatic ring containing group having from six to nine carbon atoms, R 1 is a C 1 -C 12 alkyl group, R 2 is a C 1 -C 12 alkyl group, m is an integer of from 0 to 5, n is an integer of from 1 to 3, and (m+n) is an integer of from 1 to 6.

2 . The composition as claimed in claim 1 , wherein the (i) one or more aqueous polymers is chosen from vinyl or acrylic emulsion polymers or polyurethane dispersions.

3 . The composition as claimed in claim 1 , wherein the amount of the (ii) one or more compounds selected from a C 1 -C 12 alkyl phenyl ether having a formula Ph(R 2 ) m (OR 1 ) n ranges from 100 ppb to 2 ppm.

4 . The composition as claimed in claim 1 , wherein the composition comprises (ii) two compounds selected from a C 1 -C 12 alkyl phenyl ether having a formula Ph(R 2 ) m (OR 1 ) n in a predefined ratio.

5 . The composition as claimed in claim 1 , wherein at least one of the (ii) one or more compounds selected from a C 1 -C 12 alkyl phenyl ether has a formula Ph(R 2 ) m (OR 1 ) n , wherein R 1 is a C 4 to C 8 alkyl group.

6 . The composition as claimed in claim 1 , wherein at least one of the (ii) one or more compounds selected from a C 1 -C 12 alkyl phenyl ether has a formula Ph(R 2 ) m (OR 1 ) n , wherein Ph is a phenyl group.

7 . The composition as claimed in claim 1 , wherein at least one of the (ii) one or more compounds selected from a C 1 -C 12 alkyl phenyl ether has a formula Ph(R 2 ) m (OR 1 ) n , wherein (m+n) is an integer of from 1 to 3.

8 . The composition as claimed in claim 1 , having a pH of from 3 to 12.

9 . The composition as claimed in claim 1 , wherein the (i) one or more aqueous polymer is a vinyl or acrylic emulsion polymer which is an anionically stabilized emulsion polymer and, wherein the composition further comprises one or more polyamine and one or more volatile base.

10 . A method of detecting a marker of (ii) one or more C 1 -C 12 alkyl phenyl ethers in an aqueous composition of (i) one or more aqueous polymers, or a dried or cured film, coating or layer formed therefrom, the method comprising:
extracting the one or more C 1 -C 12 alkyl phenyl ethers from the aqueous composition or the dried or cured film, coating or layer formed therefrom using a solvent to form a marker extract; separating from the marker extract the (ii) one or more C 1 -C 12 alkyl phenyl ethers by chromatographic separation; and, detecting the (ii) one or more C 1 -C 12 alkyl phenyl ethers in the marker extract.

Assignees

• Dow Global Technologies Llc
• Rohm & Haas

Inventors

• Yang Peilin
• Greyson Eric C
• Fu Zhenwen
• Asif Zahid

Classifications

• G01N33/32

  Paints; Inks · CPC title

• G01N30/02

  Column chromatography · CPC title

• C09D7/63 Primary

  organic · CPC title

• C09D5/004

  Reflecting paints; Signal paints · CPC title

• C08K5/06 Primary

  Ethers; Acetals; Ketals; Ortho-esters · CPC title