US2002091204A1PendingUtilityA1

Photographic element with polyesters blended with poly(ether imide)

44
Priority: Dec 30, 1999Filed: Mar 8, 2002Published: Jul 11, 2002
Est. expiryDec 30, 2019(expired)· nominal 20-yr term from priority
Inventors:Robert H. FehnelJehuda Greener
G03C 1/795C08L 67/02C08L 79/08
44
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Claims

Abstract

A method for blending poly(ether imide)s with polyesters comprising: (a) adding polyester monomers and poly(ether imide) in a polymerization reactor at any point during a polyester polymerization process; and (b) polymerizing the polyester monomers in the presence of the poly(ether imide) under standard conditions to produce a blend.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A method for blending poly(ether imide)s with polyesters comprising: 
 (a) adding polyester monomers and poly(ether imide) in a polymerization reactor at any point during a polyester polymerization process; and    (b) polymerizing the polyester monomers in the presence of the poly(ether imide) under standard conditions to produce a blend.    
     
     
         2 . The method of  claim 1  wherein the weight ratio of polyester:poly(ether imide) in the blend is 95:5 to 70:30.  
     
     
         3 . The method of  claim 1  wherein the weight ratio of polyester:poly(ether imide) in the blend is 80:20 to 90:10.  
     
     
         4 . The method of  claim 1  wherein the poly(ether imide) is added to a continuous polymerization reactor or a batch polymerization reactor.  
     
     
         5 . The method of  claim 1  wherein the polyester is poly(ethylene2,6-naphthalate).  
     
     
         6 . The method of  claim 1  wherein the poly(ether imide) is a condensation polymer of 2,2-bis[4-(2,3-dicarboxyphenoxy)phenyl]propane dianhydride and m-phenylene diamine.  
     
     
         7 . The method of  claim 5  wherein the weight ratio of poly(ethylene naphthalate):poly(ether imide) in the blend is 95:5 to 70:30.  
     
     
         8 . The method of  claim 5  wherein the weight ratio of poly(ethylene naphthalate):poly(ether imide) in the blend is 80:20 to 90:10.  
     
     
         9 . The method of  claim 5  wherein the weight ratio of poly(ethylene-2,6-naphthalate):the condensation polymer of 2,2-bis[4-(2,3-dicarboxyphenoxy)phenyl]propane dianhydride and m-phenylene diamine in the blend is 80:20 to 90:10.  
     
     
         10 . The method of  claim 9  wherein the weight ratio of poly(ethylene-2,6-naphthalate):the condensation polymer of 2,2-bis[4-(2,3-dicarboxyphenoxy)phenyl]propane dianhydride and m-phenylene diamine in the blend is 95:5 to 70:30.  
     
     
         11 . The method of  claim 1  wherein the polyester is poly(ethylene terephthalate).  
     
     
         12 . The method of  claim 11  wherein the weight ratio of poly(ethylene terephthalate):poly(ether imide) in the blend is 95:5 to 70:30.  
     
     
         13 . The method of  claim 11  wherein the weight ratio of is poly(ethylene terephthalate):poly(ether imide) in the blend is 80:20 to 90:10.  
     
     
         14 . The method of  claim 11  wherein the poly(ether imide) is a condensation polymer of 2,2-bis[4-(2,3-dicarboxyphenoxy)phenyl]propane dianhydride and m-phenylene diamine.  
     
     
         15 . The method of  claim 11  wherein the weight ratio of poly(ethylene terephthalate):the condensation polymer of 2,2-bis[4-(2,3-dicarboxyphenoxy)phenyl]propane dianhydride and m-phenylene diamine in the blend is 95:5 to 70:30.  
     
     
         16 . The method of  claim 1  wherein the polyester or copolyester is selected from the group consisting of polycondensation products of diacids, diester analogs and glycols.  
     
     
         17 . The method of  claim 16  wherein the diacid is terephthalic acid, naphthoic acid, 5-sodiosulfoisophthalic acid, or isophthalic acid or their diester analogs.  
     
     
         18 . The method of  claim 16  wherein the glycol is ethlylene glycol, diethylene glycol, poly(ethylene glycol), poly(propylene glycol), cyclohexane dimethanol, butanediol, neopentyl glycol, trimethylolpropane or pentaerythritol.  
     
     
         19 . A photographic element comprising a film support bearing at least one photographic layer, the film support comprising a homogenous blend of from 70 to 95 weight percent poly(ethylene naphthalate) and from 30 to 5 weight percent of a poly(ether imide).  
     
     
         20 . A photographic element comprising a film base bearing at least one photographic layer, the film base comprising a homogenous blend of from 80 to 90 weight percent poly(ethylene naphthalate) and from 20 to 10 weight percent of a poly(ether imide).

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