Hydraulic composition

Claim 2

A hydraulic composition comprising 100 parts by weight of a hydraulic substance and as a water-reducing admixture 0.01 to 2.0 parts by weight of a water-soluble polymer, said polymer being selected from the group consisting of: 1. the water-soluble olefin-ethylenically unsaturated dicarboxylic acid salt copolymers represented by the following structure: ##STR5## wherein A is an olefin unit selected from the group consisting of an acyclic olefin having 5 to 6 carbon atoms, a cyclic olefin having 5-10 carbon atoms and derivatives of said cyclic olefin, B is selected from the group consisting of ##STR6## M is selected from the group consisting of an alkali metal atom, an alkaline earth metal atom and ammonium ion, x is from 0.4 to 0.6, and n is an integer from 2 to 300; and 2.

Claim 3

derivatives of said copolymer wherein M in the copolymer is replaced by an alkyl group having 1-8 carbon atoms in an amount of not more than 30%

Claim 4

derivatives of said copolymer wherein M in the copolymer is replaced by an alkyl group having 1-8 carbon atoms in an amount of not more than 30%

Claim 5

thereof. 2. The composition of claim 1 wherein said water-soluble polymer is an olefin-ethylenically unsaturated dicarboxylic acid salt copolymer.

Claim 6

The composition of claim 1 wherein said water-soluble polymer is a derivative of an olefin-ethylenically unsaturated dicarboxylic acid salt copolymer in which M is replaced by an alkyl group having 1-3 carbon atoms in an amount of 5-20% thereof.

Claim 7

The composition of claim 1 wherein A is an acyclic olefin having 5 or 6 carbon atoms.

Claim 8

The composition of claim 1 wherein A is a cyclic olefin having 5-10 carbon atoms.

Claim 9

The composition of claim 1 wherein A is a derivative of a cyclic olefin having 5-10 carbon atoms and said derivative is selected from the group consisting of the lower alkyl-substituted derivatives having 1-5 carbon atoms in the alkyl group, cyano-substituted derivatives and acetyl-substituted derivatives.

Claim 10

The composition of claim 1 wherein B is ##STR7##

Claim 11

The composition of claim 2 wherein said water-soluble polymer is C 5 -acyclic olefin-maleic acid salt copolymer.

Claim 12

The composition of claim 2 wherein said water-soluble polymer is a hexene-1-maleic acid salt copolymer.

Claim 13

The composition of claim 2 wherein said water-soluble polymer is a C 5-10 cyclic olefin-maleic acid salt copolymer.

Claim 14

In a method for reducing the amount of water required for curing a hydraulic composition by adding water-reducing admixture to said hydraulic composition, the improvement comprising adding as the water-reducing admixture, 0.01 to 2.0 parts by weight, per 100 parts by weight of said hydraulic composition, of water-soluble polymer selected from the group consisting of 1. water soluble olefin-ethylenically unsaturated dicarboxylic acid salt copolymers represented by the following structure: ##STR8## wherein A is an olefin unit selected from the group consisting of an acyclic olefin having 5 or 6 carbon atoms, a cyclic olefin having 5-10 carbon atoms and derivatives of said cyclic olefin, B is selected from the group consisting of ##STR9## M is selected from the group consisting of an alkali metal atom, an alkaline earth metal atom and ammonium ion, x is from 0.4 to 0.6, and n is integer from 2 to 300; and

Claim 15

In a method for reducing the amount of water required for curing a hydraulic composition by adding water-reducing admixture to said hydraulic composition, the improvement comprising adding as the water-reducing admixture, 0.01 to 2.0 parts by weight, per 100 parts by weight of said hydraulic composition, of water-soluble polymer selected from the group consisting of 1. water soluble olefin-ethylenically unsaturated dicarboxylic acid salt copolymers represented by the following structure: ##STR8## wherein A is an olefin unit selected from the group consisting of an acyclic olefin having 5 or 6 carbon atoms, a cyclic olefin having 5-10 carbon atoms and derivatives of said cyclic olefin, B is selected from the group consisting of ##STR9## M is selected from the group consisting of an alkali metal atom, an alkaline earth metal atom and ammonium ion, x is from 0.4 to 0.6, and n is integer from 2 to 300; and

Claim 16

derivatives of said copolymer wherein M in the copolymer is replaced by an alkyl group having 1-8 carbon atoms in an amount of not more than 30% thereof.

Claim 17

derivatives of said copolymer wherein M in the copolymer is replaced by an alkyl group having 1-8 carbon atoms in an amount of not more than 30% thereof.

Claim 18

The method of claim 11 wherein said water-soluble polymer is an olefin-ethylenically unsaturated dicarboxylic acid salt copolymer.

Claim 19

The method of claim 11 wherein said water-soluble polymer is a derivative of an olefin-ethylenically unsaturated dicarboxylic acid salt copolymer in which M is replaced by an alkyl group having 1-3 carbon atoms in an amount of 5-20% thereof.

Claim 20

The method of claim 11 wherein A is an acyclic olefin having 5 or 6 carbon atoms.

Claim 21

The method of claim 11 wherein A is a cyclic olefin having 5-10 carbon atoms.

Claim 22

The method of claim 11 wherein A is a derivative of a cyclic olefin having 5-10 carbon atoms and said derivative is selected from the group consisting of the lower alkyl-substituted derivatives having 1-5 carbon atoms in the alkyl group, cyano-substituted derivatives and acetyl-substituted derivatives.

Claim 23

The method of claim 11 wherein B is ##STR10##

Claim 24

The method of claim 11 wherein said water-soluble polymer is C 5 -acyclic olefin-maleic acid salt copolymer.

Claim 25

The method of claim 11 wherein said water-soluble polymer is a hexane-1-maleic acid salt copolymer.

Claim 26

The method of claim 11 wherein said water-soluble polymer is a C 5-10 cyclic olefin-maleic acid salt copolymer.

Claim 27

The composition of claim 1 wherein said water-reducing mixture is present together with sodium silicate.

Claim 28

The method of claim 11 wherein said water-reducing admixture is added together with sodium silicate.