IP Library › Granted Patent US 7,198,844
Granted Patent B2
US 7,198,844 · App. 10/347,037 · Granted Apr 3, 2007

Microporous polymeric resin containing stabilizers and method for making thereof

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Quick Facts
Patent No.
US 7,198,844
App. No.
10/347,037
Granted
Apr 3, 2007
Kind
B2
Abstract

Microporous particles for stabilizing thermoplastic compositions comprising comprising a stabilizer are provided. Each of the porous microparticles has a plurality of preformed pores into which the stabilizing agent is loaded and from which the stabilizing is subsequently released to the processing environment of use.

Claims (18)

1. A polymeric microporous particle for improving melt stability and color stability of thermoplastic composition, wherein said polymeric microporous particle is selected from the group consisting of polypropylene, polyesters, polyamides, polyanhydrides and polyacrylates, a stabilizer is selected from the group consisting of a) an amine oxide and b) an organic phosphite, said microporous particle having a plurality of preformed pores into which said stabilizer is loaded and from which stabilizer is released to said thermoplastic composition in processing.

2. The polymeric microporous particle of claim 1 , wherein said particle is used in a masterbatch composition.

3. The polymeric microporous particle of claim 1 , wherein said stabilizer is present in an amount of 5 to 85 percent by weight of the total weight of said microporous particle.

4. A polymeric microporous particle for improving melt stability and color stability of thermoplastic composition, wherein said polymeric microporous particle is selected from the group consisting of polypropylene, polyesters, polyamides, polyanhydrides and polyacrylates, a stabilizer selected from the group consisting of a hydrocarbon amine oxide and a hydroxylamine, said microporous particle having a plurality of preformed pores into which said stabilizer is loaded and from which stabilizer is released to said thermoplastic composition in processing.

5. The polymeric microporous particle of claim 1 , wherein said microparticle comprises pores in the form of interconnected void spaces, with void volumes ranging from about 20 to 90% to total volume of said microporous particle.

6. The polymeric microporous particle of claim 1 , wherein said microporous particle ranges in size from about 5 to 1000 microns in diameter.

7. The polymeric microporous particle of claim 1 , wherein said microporous particle comprises a polypropylene.

8. The polymeric microporous particle of claim 1 , wherein said microporous particle has a loading capacity of 85 percent by weight.

9. The polymeric microporous particle of claim 1 , for use in improving melt stability and color stability of thermoplastic compositions comprising at least one of polyolefins, styrenic polymers, ABS, polyesters, and blends thereof.

10. The polymeric microporous particle of claim 9 , for use in improving melt stability and color stability of polyolefin compositions.

11. A composition for improving melt stability and color stability of thermoplastic composition, said composition comprising: a stabilizer selected from the group consisting of a) an amine oxide and b) an organic phosphite; polymeric microporous particles selected from the group consisting of polypropylene, polyesters, polyamides, polyanhydrides and polyacrylates; wherein said microporous particles comprising a plurality of preformed pores into which said stabilizer is loaded and from which stabilizer is released to said thermoplastic composition in processing; and said stabilizer being present in an amount of 5 to 85 percent by weight of the total weight of said microporous particle.

12. The composition of claim 11 , wherein said composition is used as a masterbatch.

13. The composition of claim 11 , wherein said microporous particles comprise pores in the form of interconnected void spaces, with void volumes ranging from about 20 to 90% to total volume of said microporous particles.

14. The composition of claim 11 , wherein said microporous particles range in size from about 5 to 1000 microns in diameter.

15. The composition of claim 11 , wherein said microporous particles comprise a polypropylene.

16. The composition of claim 11 , further comprising at least one additive selected from the group consisting of phenolic antioxidants, 3-arylbenzofuranones, hindered amine light stabilizers, ultraviolet light absorbers, alkaline metal salts of fatty acids, and hydroxylamines.

17. The composition of claim 16 , further comprising at least an additive selected from the group consisting of alkaline metal salts of fatty acids.

18. A microparticle for stabilizing thermoplastic compositions, having an average diameter of 2–200 μm, said microparticle comprising a stabilizer selected from the group consisting of amine oxides and organic phosphites, said stabilizer being dispersed in a matrix composed of interconnected pores having a void volume ranging from about 20 to 90%, and wherein said pores having a median size of about 0.10 micrometers to about 10 micrometers.

Assignments (16)
RELEASE OF SECURITY INTEREST RECORDED AT REEL 030872 FRAME 0810 Recorded Oct 16, 2018
From: WELLS FARGO BANK
To: ADDIVANT USA, LLC
Reel/Frame 047240/0580 →
RELEASE OF FIRST LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded May 11, 2017
From: BANK OF AMERICA, N.A.
To: CHEMTURA CORPORATION; BIOLAB FRANCHISE COMPANY, LLC; BIO-LAB, INC.; CROMPTON COLORS INCORPORATED; CROMPTON HOLDING CORPORATION; GLCC LAUREL, LLC; GREAT LAKES CHEMICAL CORPORATION; GREAT LAKES CHEMICAL GLOBAL, INC.; GT SEED TREATMENT, INC.; HOMECARE LABS, INC.; LAUREL INDUSTRIES HOLDINGS, INC.; RECREATIONAL WATER PRODUCTS, INC.; WEBER CITY ROAD LLC
Reel/Frame 042447/0508 →
RELEASE OF SECOND LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded May 11, 2017
From: BANK OF AMERICA, N.A.
To: CHEMTURA CORPORATION; BIOLAB FRANCHISE COMPANY, LLC; BIO-LAB, INC.; CROMPTON COLORS INCORPORATED; CROMPTON HOLDING CORPORATION; GLCC LAUREL, LLC; GREAT LAKES CHEMICAL CORPORATION; GREAT LAKES CHEMICAL GLOBAL, INC.; GT SEED TREATMENT, INC.; HOMECARE LABS, INC.; LAUREL INDUSTRIES HOLDINGS, INC.; RECREATIONAL WATER PRODUCTS, INC.; WEBER CITY ROAD LLC
Reel/Frame 042449/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 1, 2014
From: CHEMTURA CORPORATION
To: ADDIVANT USA LLC
Reel/Frame 031895/0895 →
SECURITY INTEREST Recorded Jul 19, 2013
From: ADDIVANT USA, LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 030872/0810 →
PARTIAL RELEASE OF IP SECURITY AGREEMENT ABL Recorded May 8, 2013
From: BANK OF AMERICA, N.A.
To: CHEMTURA CORPORATION; BIO-LAB INC.; CROMPTON COLORS INCORPORATED; GLCC LAUREL, LLC; GREAT LAKES CHEMICAL CORPORATION; HOMECARE LABS, INC.; RECREATIONAL WATER PRODUCTS, INC.; WEBER CITY ROAD LLC; AQUA CLEAR INDUSTRIES, LLC; ASEPSIS, INC.; NAUGATUCK TREATMENT COMPANY; CNK CHEMICAL REALTY CORPORATION; KEM MANUFACTURING CORPORATION
Reel/Frame 030407/0063 →
PARTIAL RELEASE OF IP SECURITY AGREEMENT TL Recorded May 8, 2013
From: BANK OF AMERICA, N.A.
To: CHEMTURA CORPORATION; BIO-LAB INC.; CROMPTON COLORS INCORPORATED; GLCC LAUREL, LLC; GREAT LAKES CHEMICAL CORPORATION; HOMECARE LABS, INC.; RECREATIONAL WATER PRODUCTS, INC.; WEBER CITY ROAD LLC; AQUA CLEAR INDUSTRIES, LLC; ASEPSIS, INC.; NAUGATUCK TREATMENT COMPANY; CNK CHEMICAL REALTY CORPORATION; KEM MANUFACTURING CORPORATION
Reel/Frame 030411/0062 →
CHANGE OF NAME Recorded Apr 8, 2013
From: CROMPTON CORPORATION
To: CHEMTURA CORPORATION
Reel/Frame 030167/0429 →
FIRST LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT. Recorded Mar 21, 2011
From: CHEMTURA CORPORATION; BIOLAB FRANCHISE COMPANY, LLC; BIO-LAB, INC.; CROMPTON COLORS INCORPORATED; CROMPTON HOLDING CORPORATION; GLCC LAUREL, LLC; GREAT LAKES CHEMICAL CORPORATION; GREAT LAKES CHEMICAL GLOBAL, INC.; GT SEED TREATMENT, INC.; HOMECARE LABS, INC.; LAUREL INDUSTRIES HOLDINGS, INC.; RECREATIONAL WATER PRODUCTS, INC.; WEBER CITY ROAD LLC
To: BANK OF AMERICA, N.A.
Reel/Frame 026028/0622 →
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 →
SECDOND LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Mar 21, 2011
From: CHEMTURA CORPORATION; BIOLAB FRANCHISE COMPANY, LLC; BIO-LAB, INC.; CROMPTON COLORS INCORORATED; CROMPTON HOLDING CORPORATION; CLCC LAUREL, LLC; GREAT LAKES CHEMICAL CORPORATION; GREAT LAKES CHEMICAL GLOBAL, INC.; GT SEED TREATMENT, INC.; HOMECARE LABS, INC.; HAOMECARE LABS, INC.; LAUREL INDUSTRIES HOLDINGS, INC.; RECREATIONAL WATER PRODUCTS, INC.; WEBER CITY ROAD LLC
To: BANK OF AMERICA, N. A.
Reel/Frame 027881/0347 →
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 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 17, 2003
From: PRABHU, VAIKUNTH S.; MOORE, MARSHALL D.
To: GENERAL ELECTRIC COMPANY
Reel/Frame 013681/0498 →