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# c19) United States c12) Patent Application Publication 

# VISWANATHAN et al. 

# (54) NOVEL COMPOSITIONS AND METHODS TO PRODUCE TRIAZINE-ARYLHYDROXY-ALDEHYDE CONDENSATES WITH IMPROVED SOLUBILITY 

(71) Applicant: Hexion Inc., Columbus, OH (US) 

(72) Inventors: Ganapathy S. VISWANATHAN, Louisville, KY (US); Vinay MALHOTRA, Louisville, KY (US) 

(21) Appl. No.: 14/973,265 

(22) Filed: Dec.17,2015 

(63) Continuation of application No. 12/858,096, filed on Aug. 17, 2010, now Pat. No. 9,249,251. 

(51) Int. Cl. 

<img src='content_image/945082.jpg'>

## Related U.S. Application Data 

## Publication Classification 

<img src='content_image/945065.jpg'>

(52) U.S. Cl. CPC . C0SG 14110 (2013.01); C0SK 5105 (2013.01); C0SL 63/00 (2013.01) 

## (57) ABSTRACT 

Compositions and methods for forming condensates and resin compositions are provided. In one embodiment, a con› densate is formed from a reaction mixture including a triazine monomer, an arylhydroxy monomer, an aldehyde monomer and an acid catalyst having a pKa value of greater than 3.8. The condensates contain up to 28 wt. % of nitrogen and have a melt viscosity of 3,000 cps or less at 175° C. The conden› sates may have a solubility of at least 80 wt. % solids dis› solved in an organic solvent for 120 hours or greater. Also disclosed are methods for the manufacture of the condensate as well as the condensate’s use in fire-retardant epoxy resin compositions suitable for the manufacture of laminates for electronic applications. There is also disclosed a glycidylated triazine-arylhydroxy-aldehyde condensate of this invention. 

US 20160168306Al 

# c10) Pub. No.: US 2016/0168306 Al 

# (43) Pub. Date: Jun. 16, 2016 

