US 6,646,092 B2 · Method for manufacturing amphoteric urethane resin and amphoteric urethane resin and resin composition obtained therewith

Abstract

The invention presents a method for manufacturing an amphoteric urethane resin, improving at least one of the performance of cosmetics including this amphoteric urethane resin and the storage stability of the urethane resin. The method for manufacturing an amphoteric urethane resin uses (A) a polyol; (B) a polyisocyanate; (C) a polysiloxane compound (except any having at least one selected from a hydroxyl group, a primary amino group and a secondary amino group at one or both ends of the siloxane chain); (D) a compound having carboxyl groups and at least one selected from a hydroxyl group, a primary amino group and a secondary amino group; (E) a compound having tertiary amino groups and at least one selected from a hydroxyl group, a primary amino group and a secondary amino group; and the method includes a step of making a prepolymer including isocyanate groups by reacting the compounds (A), (B) and (D) with excessive isocyanate groups; and a step of reacting the prepolymer including the isocyanate groups with the compound (E); wherein the compound (C) is present in at least one of the first step and the second step.

Claims15

Dependent claims

A method for manufacturing an amphoteric urethane resin using:

(A) a polyol compound;
(B) a polyisocyanate compound;
(C) a polysiloxane compound (except any having at least one group selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group at one or both ends of the siloxane chain);
(D) a compound having at least one carboxyl group and at least one group selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group;
(E) a compound having at least one tertiary amino group and at least one group selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group;
the method comprising:
a first step of manufacturing a prepolymer including isocyanate groups by reacting the compounds (A), (B) and (D) under the condition of excessive isocyanate groups;
and
a second step of reacting the prepolymer including the isocyanate groups with the compound (E);
wherein the compound (C) is present in at least one of the first step and the second step.

7 more elements

A method for manufacturing an amphoteric urethane resin using:

(A) a polyol compound;
(B) a polyisocyanate compound;
(C) a polysiloxane compound (except any having at least one group selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group at one or both ends of the siloxane chain);
(D) a compound having at least one carboxyl group and at least one group selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group;
(E) a compound having at least one tertiary amino group and at least group one selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group;
(F) a compound having at least one group selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group, and structural units indicated by the following formula (11)
—(C2H4O)p(C3H6O)q— (11)
wherein “p” is an integer of 1 to 500, “q” is an integer of 0 to 400, and
wherein, if the structural units in structural formula (11) are copolymers of C2H4O and C3H6O (that is, q≠0), then they can be random copolymers or block copolymers;
the method comprising:
a first step of manufacturing a prepolymer including isocyanate groups by reacting the compounds (A), (B), (D) and (F) under the condition of excessive isocyanate groups;
and
a second step of reacting the prepolymer including the isocyanate groups with the compound (E);
wherein the compound (C) is present in at least one of the first step and the second step.

11 more elements

A method for manufacturing an amphoteric urethane resin using:

(A) a polyol compound;
(B) a polyisocyanate compound;
(C) a polysiloxane compound (except any having at least one group selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group at one or both ends of the siloxane chain);
(D) a compound having at least one carboxyl group and at least one group selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group;
(E) a compound having at least one tertiary amino group and at least one group selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group;
(F) a compound having at least one group selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group, and structural units indicated by the following formula (11)
—(C2H4O)p(C3H6O)q— (11)
wherein “p” is an integer of 1 to 500, “q” is an integer of 0 to 400, and
wherein, if the structural units in structural formula (11) are copolymers of C2H4O and C3H6O (that is, q≠0), then they can be random copolymers or block copolymers;
the method comprising:
a first step of manufacturing a prepolymer including isocyanate groups by reacting the compounds (A), (B), (E) and (F) under the condition of excessive isocyanate groups;
and
a second step of reacting the prepolymer including the isocyanate groups with the compound (D);
wherein the compound (C) is present in at least one of the first step and the second step.

11 more elements

Dependencies are inferred from the claim text.

Method for manufacturing amphoteric urethane resin and amphoteric urethane resin and resin composition obtained therewith

Life of this patent

Method for manufacturing amphoteric urethane resin and amphoteric urethane resin and resin composition obtained therewith

Life of this patent

Abstract

Claims15