Back to results
US 4,311,799 AGranted
Novel basic cross-linked polymers
AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsTetsuya Miyake, Kunihiko Takeda, Akihiko Ikeda
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsTetsuya Miyake, Kunihiko Takeda, Akihiko Ikeda
Estimating the term…
A basic copolymer whose main chain is cross-linked which comprises about 6 to about 98% by weight of recurring units of Formula (A) or (B), ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, each represents a hydrogen atom or a hydrocarbon group selected from the group consisting of C.sub.1-20 alkyl groups, C.sub.3-10 cycloalkyl groups, C.sub.3-8 alkenyl groups, C.sub.6-15 aryl groups, C.sub.7-12 arylalkyl groups and C.sub.1-15 aminoalkyl groups; and X is an acid radical, and about 2 to about 94% by weight of cross-linked units based on the total weight of the recurring units of Formula (A) or (B) and the cross-linked units and, if desired, up to about 92% by weight of units of a monoethylenically unsaturated monomer or a conjugated monomer based on the total weight of the recurring units of Formula (A) or (B), the cross-linked units and the units of the monoethylenically unsaturated monomer or the conjugated monomer.
A process for producing a copolymer having recurring units of Formula (A) ##STR23## which comprises polymerizing a monomer mixture consisting essentially of about 6 to about 98% by weight of a monomer of Formula (C), ##STR24## wherein R.sub.1 and R.sub.2 which may be the same or different, each represents a hydrogen atom or a hydrocarbon group selected from the group consisting of C.sub.1-20 alkyl groups, C.sub.3-10 cycloalkyl groups, C.sub.3-8 alkenyl groups, C.sub.6-15 aryl groups, C.sub.7-12 arylalkyl groups and C.sub.1-15 aminoalkyl groups, and about 2 to 94% by weight of divinylbenzene based on the total weight of the monomer of Formula (C) and the divinylbenzene.
A process for producing a copolymer having recurring units of the formula ##STR26## which comprises reacting a copolymer as produced in claim 33 having recurring units of Formula (A) ##STR27## with an acid HX, wherein X is an acid radical selected from the group consisting of a halogen atom, 1/2SO.sub.4, 1/2SO.sub.3, HSO.sub.4, NO.sub.3, NO.sub.2, 1/2CrO.sub.4, SCN, ClO.sub.4, OH, H.sub.2 PO.sub.4, 1/2HPO.sub.4, 1/3PO.sub.3, HCO.sub.3, 1/2CO.sub.3, CN, MnO.sub.4, R.sub.4 COO wherein R.sub.4 is a C.sub.1-20 alkyl group, a C.sub.6-15 aryl group, a C.sub.1-10 haloalkyl group or a C.sub.1-10 hydroxyalkyl group, R.sub.5 SO.sub.3 wherein R.sub.5 is a methyl group, an ethyl group or a C.sub.6-20 aryl group, CH.sub.3 OSO.sub.3 and C.sub.2 H.sub.5 OSO.sub.3.
A process for producing a copolymer having recurring units of Formula (B) ##STR29## which comprises polymerizing a monomer mixture consisting essentially of about 6 to about 98% by weight of a monomer of Formula (H), ##STR30## wherein R.sub.1, R.sub.2 and R.sub.3 which may be the same or different, each represents a hydrogen atom or a hydrocarbon group selected from the group consisting of C.sub.1-20 alkyl groups, C.sub.3-10 cycloalkyl groups, C.sub.3-8 alkenyl groups, C.sub.6-15 aryl groups, C.sub.7-12 arylalkyl groups and C.sub.1-15 aminoalkyl groups;
Dependencies are inferred from the claim text.