IP Library › Granted Patent US 6,984,684
Granted Patent B2
US 6,984,684 · App. 10/724,374 · Granted Jan 10, 2006

Stability improvement of aluminum hydroxide in PVC compound

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Quick Facts
Patent No.
US 6,984,684
App. No.
10/724,374
Granted
Jan 10, 2006
Kind
B2
Abstract

An aluminum hydroxide composition is disclosed, having diminished tendency to cause discoloration on heating at 177° C. of a plastic composition whose major polymeric component is polyvinyl chloride, comprising aluminum hydroxide and an amount, effective in diminishing discoloration, of at least one inorganic perchlorate salt selected from the group consisting of alkali metal perchlorates and alkaline earth metal perchlorates.

Claims (12)

1. A plastic composition having diminished tendency to discolor on heating at 177° C. in the presence of aluminum hydroxide, comprising polyvinyl chloride, from 15 parts by weight to 150 parts by weight aluminum hydroxide per 100 parts by weight of polyvinyl chloride, and an amount, effective in diminishing said tendency to discolor, of at least one inorganic perchlorate salt selected from the group consisting of alkali metal perchlorates.

2. The composition of claim 1 , wherein the amount of said inorganic perchlorate is in the range from 0.03 parts by weight to 3 parts by weight per 100 parts by weight of aluminum hydroxide.

3. The composition of claim 1 , wherein said inorganic perchlorate is sodium perchlorate.

4. The composition of claim 1 , additionally comprising at least one plasticizer.

5. The composition of claim 4 , wherein said at least one plasticizer is selected from the group consisting of dialkyl phthalates and trialkyl trimellitates having independently in each alkyl group seven to eleven carbon atoms.

6. The composition of claim 1 , additionally comprising at least one heat stabilizer.

7. The composition of claim 6 , wherein said at least one heat stabilizer is a barium, calcium, magnesium, strontium, or zinc salt of a non-nitrogenous monocarboxylic acid having 6–24 carbon atoms.

8. In a plastic composition whose major polymeric constituent is polyvinyl chloride, the improvement comprising the inclusion therein of:

(A) from 15 parts by weight to 150 parts by weight aluminum hydroxide per 100 parts by weight of polyvinyl chloride; and

(B) an amount, effective in diminishing discoloration of said composition upon heating at 177° C., of at least one inorganic perchlorate salt selected from the group consisting of alkali metal perchlorates.

9. The plastic composition of claim 8 wherein the inorganic perchlorate salt is present in the range of from 0.03 part by weight to 3 parts by weight per 100 parts by weight of the aluminum hydroxide.

10. The plastic composition of claim 9 wherein the alkali metal perchlorate is sodium perchlorate.

Assignments (9)
INTELLECTUAL PROPERTY SECURITY RELEASE AGREEMENT Recorded Mar 21, 2011
From: CITIBANK, N.A.
To: CHEMTURA CORPORATION; A & M CLEANING PRODUCTS, LLC; ASCK, INC; BIOLAB COMPANY STORE, LLC; AQUA CLEAR INDUSTRIES, LLC; ASEPSIS, INC.; BIOLAB TEXTILES ADDITIVES, LLC; BIOLAB, INC.; CROMPTON COLORS INCORPORATED; CROMPTON MONOCHEM, INC.; CNK CHEMICAL REALTY CORPORATION; CROMPTON HOLDING CORPORATION; GLCC LAUREL, LLC; GREAT LAKES CHEMICAL CORPORATION; GT SEED TREATMENT, INC.; ISCI, INC; GREAT LAKES CHEMICAL GLOBAL, INC.; HOMECARE LABS, INC.; KEM MANUFACTURING CORPORATION; LAUREL INDUSTRIES HOLDINGS, INC.; NAUGATUCK TREATMENT COMPANY; UNIROYAL CHEMICAL COMPANY LIMITED (DELAWARE); MONOCHEM, INC.; RECREATIONAL WATER PRODUCTS, INC.; WEBER CITY ROAD LLC; WRL OF INDIANA, INC.; BIOLAB FRANCHISE COMPANY, LLC
Reel/Frame 026039/0142 →
RELEASE OF SECURITY INTEREST Recorded May 12, 2010
From: CITIBANK, N.A.
To: CHEMTURA CORPORATION (AND ALL GRANTORS IDENTIFIED IN THE IP SECURITY AGREEMENTS DATED 3/18/09 AND 2/12/10)
Reel/Frame 024369/0172 →
SECURITY AGREEMENT Recorded May 12, 2010
From: GALATA CHEMICALS HOLDING COMPANY, LLC; GALATA CHEMICALS, LLC
To: WACHOVIA CAPITAL FINANCE CORPORATION (NEW ENGLAND)
Reel/Frame 024369/0232 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 6, 2010
From: CHEMTURA CORPORATION
To: GALATA CHEMICALS, LLC
Reel/Frame 024342/0736 →
CHANGE OF NAME Recorded Apr 12, 2010
From: CROMPTON CORPORATION
To: CHEMTURA CORPORATION
Reel/Frame 024213/0539 →
AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Feb 22, 2010
From: CHEMTURA CORPORATION; A & M CLEANING PRODUCTS, LLC; AQUA CLEAR INDUSTRIES, LLC; ASCK, INC.; ASEPSIS, INC.; BIOLAB COMPANY STORE, LLC; BIOLAB FRANCHISE COMPANY, LLC; BIOLAB TEXTILE ADDITIVES, LLC; BIO-LAB, INC.; CNK CHEMICAL REALTY CORPORATION; CROMPTON COLORS INCORPORATED; CROMPTON HOLDING CORPORATION; CROMPTON MONOCHEM, INC.; GLCC LAUREL, LLC; GREAT LAKES CHEMICAL CORPORATION; GREAT LAKES CHEMICAL GLOBAL, INC.; GT SEED TREATMENT, INC.; HOMECARE LABS, INC.; ISCI, INC.; KEM MANUFACTURING CORPORATION; LAUREL INDUSTRIES HOLDINGS, INC.; MONOCHEM, INC.; NAUGATUCK TREATMENT COMPANY; RECREATIONAL WATER PRODUCTS, INC.; UNIROYAL CHEMICAL COMPANY LIMITED (DELAWARE); WEBER CITY ROAD LLC; WRL OF INDIANA, INC.
To: CITIBANK, N.A.
Reel/Frame 023998/0001 →
SECURITY AGREEMENT Recorded May 12, 2009
From: CHEMTURA CORPORATION; A & M CLEANING PRODUCTS, LLC; AQUA CLEAR INDUSTRIES, LLC; ASCK, INC.; ASEPSIS, INC.; BIOLAB TEXTILE ADDITIVES, LLC; BIO-LAB, INC.; CNK CHEMICAL REALTY CORPORATION; CROMPTON HOLDING CORPORATION; CROMPTON COLORS INCORPORATED; CROMPTON MONOCHEM, INC.; GREAT LAKES CHEMICAL CORPORATION; GREAT LAKES CHEMICAL GLOBAL, INC.; GT SEED TREATMENT, INC.; HOMECARE LABS, INC.; ISCI, INC.; KEM MANUFACTURING CORPORATION; LAUREL INDUSTRIES HOLDINGS, INC.; MONOCHEM, INC.; NAUGATUCK TREATMENT COMPANY; RECREATIONAL WATER PRODUCTS, INC.; UNIROYAL CHEMICAL COMPANY LIMITED (DELAWARE); WEBER CITY ROAD LLC; WRL OF INDIANA, INC.; BIOLAB COMPANY STORE, LLC; BIOLAB FRANCHISE COMPANY, LLC; GLCC LAUREL, LLC
To: CITIBANK, N.A.
Reel/Frame 022668/0658 →
RELEASE OF LIEN IN PATENTS Recorded Jul 13, 2005
From: DEUTSCHE BANK AG, NEW YORK BRANCH
To: CROMPTON CORPORATION
Reel/Frame 016513/0745 →
SECURITY AGREEMENT Recorded Nov 10, 2004
From: CROMPTON CORPORATION
To: DEUTSCHE BANK AG NEW YORK BRANCH
Reel/Frame 015370/0467 →