This invention relates to the field of plastic waste decomposition. More specifically, the invention comprises products obtained from the decomposition of plastic waste.

This invention relates to the field of contaminated plastic waste decomposition. More specifically, the invention comprises methods and systems to decompose contaminated plastic waste and transform it into value-added products.

This invention relates to a process for obtaining monocarboxylic and dicarboxylic acids from unsaturated carboxylic acids and/or their derivatives. The said process comprises an oxidative cleavage reaction of vicinal diols into which are fed at least some of the aqueous phase separated out at the end of the reaction itself and at least one base so that the pH of the aqueous solution at the start of the oxidative cleavage reaction is between 4 and 7.

This invention relates to a process for obtaining monocarboxylic and dicarboxylic acids from unsaturated carboxylic acids and/or their derivatives. The said process comprises an oxidative cleavage reaction of vicinal diols into which are fed at least some of the aqueous phase separated out at the end of the reaction itself and at least one base so that the pH of the aqueous solution at the start of the oxidative cleavage reaction is between 4 and 7.

This invention relates to a process for the purification of dicarboxylic acids obtained from the hydrolysis of carboxylic acid triglycerides having more than one acid functional group. The process comprises in particular the separation of at least some of the glycerine from the hydrolysis product in an aqueous phase, evaporating and/or distilling the resultant organic phase and recovering at least some of the evaporated and/or distilled dicarboxylic acids through at least one crystallisation operation.

This invention relates to a process for the purification of dicarboxylic acids obtained from the hydrolysis of carboxylic acid triglycerides having more than one acid functional group. The process comprises in particular the separation of at least some of the glycerine from the hydrolysis product in an aqueous phase, evaporating and/or distilling the resultant organic phase and recovering at least some of the evaporated and/or distilled dicarboxylic acids through at least one crystallisation operation.

This invention relates to a process for obtaining monocarboxylic and dicarboxylic acids from unsaturated carboxylic acids and/or their derivatives. The said process comprises an oxidative cleavage reaction of vicinal diols into which are fed at least some of the aqueous phase separated out at the end of the reaction itself and at least one base so that the pH of the aqueous solution at the start of the oxidative cleavage reaction is between 4 and 7.

This invention relates to a process for obtaining monocarboxylic and dicarboxylic acids from unsaturated carboxylic acids and/or their derivatives. The said process comprises an oxidative cleavage reaction of vicinal diols into which are fed at least some of the aqueous phase separated out at the end of the reaction itself and at least one base so that the pH of the aqueous solution at the start of the oxidative cleavage reaction is between 4 and 7.

The present invention relates to a coalescing agent and a coating composition containing the coalescing agent as represented in structure (I); [Formula should be inserted here] wherein; n is integer from 1 to 8; R.sup.1 and R.sup.2 independently represents group selected from alkyl, alkenyl, alkynyl, phenyl, or benzyl groups; and X represents group selected from hydroxy or amine. The coalescing agent according to this invention contains low amount of volatile organic compounds, has no pungent odour, and environmental friendly. Moreover, it provides good efficacy when being used as coating component.

##STR00001##

A thermochromic pigment composition including compounds of formula (I): ##STR00001## in which: X represents CHR.sub.2, O, OCO or CH?CH; Y represents O, COO, or OCOO; R.sub.1 represents H or (CH.sub.2).sub.pCH.sub.3; R.sub.2 represents phenyl or H; m=12-18; n=0-14; p=12-18; and on the condition that, if n=0, X represents CHR.sub.2 or CH?CH. The thermochromic pigment compositions having compounds of formula (I), include thermochromic pigment microcapsules. The thermochromic pigment capsules are useable for thermochromic pigment compositions in ink which may be used writing instruments.