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US 12,723,131 B2Granted
Polyesters
AssigneeThe Procter & Gamble Company
InventorsMartijn Gillissen, Hiroe Yamada, Gang Si, Michael McDonnell
Life of this patent
Estimating the term…
Abstract
The present invention relates to specific polyesters which are particularly suitable for use in fabric treatment applications, such as in fabric care and laundry detergent products. In such applications, the polyesters exhibit improved freshness performance, and especially good anti-malodor performance.
Claims19
A polyester comprising:
- A) one or more structure units of the formula (I)
- wherein:
- R1 is H or SO3-1/p Mp+, and
- 1/p Mp+ is a cation, and
- B) one or more structure units of the formula (II)
- wherein:
- R2 is a linear or branched alkylene group represented by the formula (CmH2m) wherein m is an integer from 2 to 10, and
- C) one or more structure units selected from the group consisting of the formulae (III-a), (III-b), (III-c) and combinations thereof,
- wherein:
- R3 and R4 are, independently of one another, selected from linear or branched alkylene groups represented by the formula (CnH2n) wherein n is 2, 3 or 4,
- R5 is a group of the formula —(CjH2jO)k—R98, wherein j is 2, 3 or 4, k is, based on a molar average, a number from 0 to 10, and R98 is selected from the group consisting of alkyl, alkenyl, hydroxyalkyl, hydroxyalkenyl, phenyl alkyl, phenyl alkenyl, alkyl phenyl, and alkenyl phenyl, wherein the alkyl and alkenyl groups, either as such or as a part of the aforementioned hydroxyalkyl, hydroxyalkenyl, phenyl alkyl, phenyl alkenyl, alkyl phenyl or alkenyl phenyl groups, contain 6 or more than 6 carbon atoms,
- R6 is a group of the formula —(Cj1H2j1O)k1—R99, wherein j1 is 2, 3 or 4, k1 is, based on a molar average, a number from 0 to 10, and R99 is selected from the group consisting of hydrogen, alkyl, alkenyl, hydroxyalkyl, hydroxyalkenyl, phenyl alkyl, phenyl alkenyl, alkyl phenyl, and alkenyl phenyl, wherein the alkyl groups, either as such or as a part of the aforementioned hydroxyalkyl, phenyl alkyl or alkyl phenyl groups, contain from 1 to 30 carbon atoms, and wherein the alkenyl groups, either as such or as a part of the aforementioned hydroxyalkenyl, phenyl alkenyl or alkenyl phenyl groups, contain from 2 to 30 carbon atoms,
- a and b are, based on a molar average, independently of one another, numbers from 1 to 200,
- 1/z Xz− is an anion;
- and
- D) one or more terminal groups (IV) derived from polyalkyleneglycol monoalkylethers.
13 more elements
A process for the preparation of a polyester comprising the steps of:
- heating one or more substances of the formula Q1-OOC—C6H3R1—COO-Q2, wherein Q1 and Q2, independently of one another, are selected from the group consisting of H and (C1-C4)-alkyl and R1 is H or SO3-1/p Mp+, and one or more glycols of the formula HO—R2—OH, wherein R2 is a linear or branched alkylene group represented by the formula (CmH2m) wherein m is an integer from 2 to 10, and one or more amine alkoxylates of the formula
- H—(O—R3)a—N(R5)—(R4—O)b—H, wherein:
- R3 and R4 are, independently of one another, selected from linear or branched alkylene groups represented by the formula (CnH2n) wherein n is 2, 3 or 4,
- R5 is a group of the formula —(CjH2jO)k—R98, wherein j is 2, 3 or 4, k is, based on a molar average, a number from 0 to 10, and R98 is selected from the group consisting of alkyl, alkenyl, hydroxyalkyl, hydroxyalkenyl, phenyl alkyl, phenyl alkenyl, alkyl phenyl, and alkenyl phenyl, wherein the alkyl and alkenyl groups, either as such or as a part of the aforementioned hydroxyalkyl, hydroxyalkenyl, phenyl alkyl, phenyl alkenyl, alkyl phenyl or alkenyl phenyl groups, contain 6 or more than 6 carbon atoms, and
- a and b are, based on a molar average, independently of one another, numbers from 1 to 200;
- with the addition of a catalyst, to temperatures of 160° C. to 220° C., and then continuing the reaction under reduced pressure at temperatures of from 160° C. to 240° C.
3 more elements
Dependencies are inferred from the claim text.