US4675356A
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Synthetic resin composition having reduced corrosion-causing tendency and coloration
Assignee: Kyowa Chemical Industry Co Ltd
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Filing: 1986-01-29
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Granted: 1987-06-23
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Expires: 2006-01-29
Abstract
Abstract A synthetic resin composition having reduced corrosion-causing tendency and coloration, said composition comprising (A) 100 parts by weight of a synthetic resin containing halogen and/or an acidic substance, and (B) 0.001 to 50 parts by weight of a hydrotalcite solid solution represented by the following formula (1) [(M12+)y1(M22+)y2]1-xMx3+(OH)2Ax/nn-.mH2O . . . (1) wherein M12+ represents at least one divalent metal cation, M22+ represents at least one divalent metal cation, M3+ represents a trivalent metal cation, An- represents an anion having a valency of n, and x, y1, Y2 and m are positive numbers represented by the following expressions 0<x</=0.5, 0<y1, 0<y2, 0.5</=y1+y2<1, and 0</=m<2; and a method for preventing the corrosion-causing tendency or coloration of a synthetic resin containing halogen and/or an acidic substance by using the above formula (1) compound.
Inventors
- 👤 Shigeo Miyata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:26
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/26
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
147 words
A synthetic resin composition having reduced corrosion-causing tendency and coloration, said composition comprising (A) 100 parts by weight of a synthetic resin containing halogen and/or an acidic substance derived from at least one kind of catalysts, monomers and post-treating agents, and (B) 0.001 to 50 parts by weight of a hydrotalcite solid solution represented by the following formula (1) [(M.sub.1.sup.2+).sub.y1 (m.sub.2.sup.2+).sub.y2 ].sub.1-x M.sub.x.sup.3+ (OH).sub.2 A.sub.x/n.sup.n-.mH.sub.2 O (1) wherein M 1 2+ represents at least one divalent metal cation selected from the group consisting of Mg, Ca, Sr and Ba, M 2 2+ represents at least one divalent metal cation selected from the group consisting of Zn, Cd, Pb and Sn, M 3+ represents a trivalent metal cation, A n- represents an anion having a valency of n, and x, y1, Y2 and m are positive numbers represented by the following expressions 0<x≦0.5, 0<y1, 0<y2, 0.5≦y1+y2<1, and 0≦m<2.
Claim 2
Dependent Claim
147 words
A synthetic resin composition having reduced corrosion-causing tendency and coloration, said composition comprising (A) 100 parts by weight of a synthetic resin containing halogen and/or an acidic substance derived from at least one kind of catalysts, monomers and post-treating agents, and (B) 0.001 to 50 parts by weight of a hydrotalcite solid solution represented by the following formula (1) [(M.sub.1.sup.2+).sub.y1 (m.sub.2.sup.2+).sub.y2 ].sub.1-x M.sub.x.sup.3+ (OH).sub.2 A.sub.x/n.sup.n-.mH.sub.2 O (1) wherein M 1 2+ represents at least one divalent metal cation selected from the group consisting of Mg, Ca, Sr and Ba, M 2 2+ represents at least one divalent metal cation selected from the group consisting of Zn, Cd, Pb and Sn, M 3+ represents a trivalent metal cation, A n- represents an anion having a valency of n, and x, y1, Y2 and m are positive numbers represented by the following expressions 0<x≦0.5, 0<y1, 0<y2, 0.5≦y1+y2<1, and 0≦m<2.
Claim 3
Dependent Claim
10 words
The composition of claim 1 wherein in formula (1), y1≧y2.
Claim 4
Dependent Claim
10 words
The composition of claim 1 wherein in formula (1), 0.2≦x≦0.4.
Claim 5
Dependent Claim
36 words
The composition of claim 1 wherein the hydrotalcite solid solution is surface-treated with a surface treating agent selected from the group consisting of higher fatty acids, anionic surface-active agents, glycerol fatty acid esters and coupling agents.
Claim 6
Dependent Claim
30 words
The composition of claim 1 wherein in formula (1), M 1 2+ is Mg or both Mg and Ca, and M 2 2+ is Zn, or both Zn and Cd.
Claim 7
Dependent Claim
13 words
The composition of claim 1 wherein in formula (1), M 3+ is Al.
Claim 8
Dependent Claim
46 words
The composition of claim 1 wherein the compound of formula (1) is represented by the following formula (1)' [(Mg.sup.2+ or Mg.sup.2+ and Ca.sup.2+).sub.y1 (Zn.sup.2+ and/or Cd.sup.2+).sub.y2 ].sub.1-x Al.sub.x.sup.3+ (OH).sub.2 (CO.sub.3).sub.x/2.mH.sub.2 O (1)' wherein x, y1, y2 and m are as defined with regard to formula (1).
Claim 9
Dependent Claim
38 words
The composition of claim 1 wherein the hydrotalcite solid solution has a BET specific surface area of not more than about 30 m 2 /g and an average secondary particle diameter of not more than about 5 micrometers.
Claim 10
Independent Claim
151 words
A method for preventing the corrosion-causing tendency or coloration of a synthetic resin containing halogen and/or an acidic substance derived from at least one kind of catalysts, monomers and post-treating agents, which comprises incorporating 0.001 to 50 parts by weight, per 100 parts by weight of said resin, of a hydrotalcite solid solution represented by the following formula (1) [(M.sub.1.sup.2+).sub.y1 (M.sub.1.sup.2+).sub.y2 ].sub.1-x M.sub.x.sup.3+ (OH).sub.2 A.sub.x/n.sup.n-.mH.sub.2 O (1) wherein M 1 2+ represents at least one divalent metal cation selected from the group consisting of Mg, Ca, Sr and Ba, M 2 2+ represents at least one divalent metal cation selected from the group consisting of Zn, Cd, Pb and Sn, M 3+ represents a trivalent metal cation, A n- represents an anion having a valency of n, and x, y1, y2 and m are positive numbers represented by the following expressions < x≦0.5, 0<y1, 0<y2, 0.5≦y1+y2<1, and 0≦m<2, in said resin.
Claim 11
Independent Claim
151 words
A method for preventing the corrosion-causing tendency or coloration of a synthetic resin containing halogen and/or an acidic substance derived from at least one kind of catalysts, monomers and post-treating agents, which comprises incorporating 0.001 to 50 parts by weight, per 100 parts by weight of said resin, of a hydrotalcite solid solution represented by the following formula (1) [(M.sub.1.sup.2+).sub.y1 (M.sub.1.sup.2+).sub.y2 ].sub.1-x M.sub.x.sup.3+ (OH).sub.2 A.sub.x/n.sup.n-.mH.sub.2 O (1) wherein M 1 2+ represents at least one divalent metal cation selected from the group consisting of Mg, Ca, Sr and Ba, M 2 2+ represents at least one divalent metal cation selected from the group consisting of Zn, Cd, Pb and Sn, M 3+ represents a trivalent metal cation, A n- represents an anion having a valency of n, and x, y1, y2 and m are positive numbers represented by the following expressions < x≦0.5, 0<y1, 0<y2, 0.5≦y1+y2<1, and 0≦m<2, in said resin.
Claim 12
Dependent Claim
30 words
The composition of claim 1 wherein in formula (1) M 1 2+ is Mg, M 2 2+ is Zn, M 3+ is Al and A n- is CO 3 .
Claim 13
Dependent Claim
108 words
The composition of claim 1 wherein the hydrotalcite solid solution is Mg 0 .5 Zn 0 .17 Al 0 .33 (OH) 2 (CO 3 ) 0 .165, Mg 0 .55 Zn 0 .15 Al 0 .3 (OH) 2 (CO 3 ) 0 .17, Mg 0 .50 Zn 0 .18 Al 0 .32 (OH) 2 (CO 3 ) 0 .16, Mg 0 .52 Zn 0 .16 Al 0 .32 (OH) 2 (CO 3 ) 0 .16, Mg 0 .48 Zn 0 .18 Al 0 .34 (OH) 2 (CO 3 ) 0 .17 or Mg 0 .51 Zn 0 .17 Al 0 .32 (OH) 2 (CO 3 ) 0 .16.
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