US2013260071A1PendingUtilityA1

Polyamide-polydiene blends with improved oxygen reactivity

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Assignee: M & G USA CORPPriority: Jun 11, 2009Filed: Mar 14, 2013Published: Oct 3, 2013
Est. expiryJun 11, 2029(~2.9 yrs left)· nominal 20-yr term from priority
Inventors:Ricardo KnudsenJeffrey Black
C08L 77/00C08L 9/00C08K 5/42C08L 77/06C08K 5/098C08K 2201/012C08L 23/22C08L 67/00C08G 69/14Y10T428/139C08G 63/183C08L 77/02B65D 1/00Y10T428/1397C08L 67/03Y10T428/1386Y10T428/1355C08L 67/02
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Claims

Abstract

This application discloses the use of polyamide-polydiene blends to improve the oxygen reactivity in the presence of ionic polyester compatibilizers.

Claims

exact text as granted — not AI-modified
We claim: 
     
         1 . A composition comprising
 a first polyester with a sulfonated comonomer having an —SO 3 M group with M being a metal in a +1 or +2 valence state selected from the group consisting of Li, Na, Zn, Sn, Ca and K,   a second polyester without a sulfonated comonomer having an —SO 3 M group,   a polyamide,   a polydiene compound, and   a transition metal compound   
       wherein the sulfonated comonomer having an —SO 3 M group is derived from the salt of sulfoisophthalic acid or its dimethyl ester and is copolymerized into the first polyester. 
     
     
         2 . The composition of  claim 1 , wherein the weight ratio of the polyamide to the polydiene compound is in the range of 4:1 and 1000:1. 
     
     
         3 . The composition of  claim 1 , wherein the polyamide is poly(m-xylylene adipamide). 
     
     
         4 . The composition of  claim 2 , wherein the polyamide is poly(m-xylylene adipamide). 
     
     
         5 . The composition of  claim 1 , wherein the metal of the transition metal compound is cobalt. 
     
     
         6 . The composition of  claim 4 , wherein the metal of the transition metal compound is cobalt. 
     
     
         7 . The composition of  claim 1 , wherein the polydiene compound is polybutadiene. 
     
     
         8 . The composition of  claim 6 , wherein the polydiene compound is polybutadiene. 
     
     
         9 . The composition of  claim 1 , wherein the second polyester is a crystallizable polyester with at least 85% of its acid units derived from terephthalic acid. 
     
     
         10 . The composition of  claim 8 , wherein the second polyester is a crystallizable polyester with at least 85% of its acid units derived from terephthalic acid. 
     
     
         11 . A container made from the composition of  claim 1 . 
     
     
         12 . A container made from the composition of  claim 10 . 
     
     
         13 . The container of  claim 11 , wherein the container comprises a stretched wall. 
     
     
         14 . The container of  claim 12 , wherein the container comprises a stretched wall.

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