Patent ID: 9199415
Filing Date: 2015-12-01
Classification: B29C,B29K,B29L,C04B

Abstract:
1. A method of manufacturing an article that resists yellowing through ultraviolet light, the article in a form of one of a slab and a block, the method comprising the steps of: preparing an initial mixture of a binder resin and a stone or stone-like granulate material, the granulate material comprising a selected granulometry; depositing the initial mixture on one of a temporary support and a mould, the one of a temporary support and mould comprising dimensions of a slab or block; vacuum compressing the deposited mixture while applying a vibratory motion at a pre-established frequency; and hardening the binder resin of the vacuum compressed mixture at a temperature ranging from 80-180° C. so as to form the slab or block, wherein the binder resin comprises a polyester resin that is ultraviolet light resistant, lacks a reactive solvent, and is formed by reacting at least one epoxidized triglyceride and a carboxylic anhydride comprising 4-methyl-1,2-cyclohexyldicarboxylic anhydride or a mixture of 4-methyl-1,2-cyclohexyldicarboxylic and 3-methyl-1,2-cyclohexyldicarboxylic anhydrides, the at least one epoxidised triglyceride comprising epoxidised triglycerides from linseed oil, and wherein the formed slab or block does not yellow after exposure to UV rays for 500 hours.