Method for producing a synthetic shaped article simulating marble, granite or the like
OwnerWilliam M. Steckerinventor
Life of this patent
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Abstract
A method for producing synthetic shaped articles simulating marble, granite or the like is provided by the present invention. A thermosetting resin is subjected to first reaction conditions effective to partially polymerize the resin to form a semi-solid mass. The partially polymerized semi-solid mass of resin is comminuted to form a plurality of discrete partially polymerized resin particles. An article of the desired shape is formed from a mass of the partially polymerized resin particles. The thus formed shaped article is then subjected to second chemical reaction conditions effective to polymerize the resin to provide a synthetic shaped article simulating marble, granite and the like.
Claims30
A method for producing a synthetic shaped article simulating marble, granite or the like, the method comprising:
- (a) providing a thermosetting resin,
- (b) subjecting the thermosetting resin to first chemical reaction conditions effective to partially polymerize the thermosetting resin to form a semi-solid resin mass;
- (c) comminuting the partially polymerized semi-solid mass of thermosetting resin to form a plurality of discrete partially polymerized resin particles;
- (d) forming a shaped article from a mass of the partially polymerized particles;
- and
- (e) subjecting the thus formed shaped article to second chemical reaction conditions effective to fully polymerize the thermosetting resin to provide a synthetic shaped article simulating marble, granite or the like.
A method for producing a synthetic shaped article simulating marble, granite or the like, the method comprising:
- (a) providing a resin system including a thermosetting resin, a first curing agent and a second curing agent;
- (b) subjecting the resin system to first curing conditions effective to activate only the first curing agent and thereby partially curing the resin system to form a semi-solid resin mass;
- (c) comminuting the partially cured semi-solid mass of resin to form a plurality of discrete partially cured resin particles;
- (d) forming a shaped article from a mass of the partially cured particles;
- and
- (e) subjecting the thus formed shaped article to second curing conditions effective to activate said second curing agent and thereby fully curing the resin system to provide a synthetic shaped article simulating marble, granite or the like.
A method for producing a synthetic shaped article simulating marble, granite or the like, the method comprising:
- (a) providing a resin system which includes a thermosetting resin, a first curing agent and a second curing agent;
- (b) subjecting the resin system to a first temperature effective to activate only the first curing agent and thereby partially curing the resin system to form a semi-solid resin mass;
- (c) cooling the partially cured semi-solid resin mass to arrest further curing of the resin while comminuting the partially cured semi-solid mass of resin to form a plurality of discrete partially cured resin particles;
- (d) forming a shaped article from a mass of the partially cured particles;
- and
- (e) subjecting the thus formed shaped article to a second temperature effective to activate said second curing agent and thereby fully curing the resin system to provide a synthetic shaped article simulating marble, granite or the like.
A method for producing a synthetic shaped article simulating marble, granite or the like, the method comprising:
- (a) providing a resin system which includes a thermosetting resin and a curing agent;
- (b) subjecting the resin system to a first temperature effective to activate the curing agent and thereby partially curing the resin system to form a semi-solid resin mass;
- (c) cooling the partially cured semi-solid resin mass to arrest further curing of the resin while comminuting the partially cured semi-solid mass of resin to form a plurality of discrete partially cured resin particles;
- (d) forming a shaped article from a mass of the partially cured particles;
- and
- (e) heating the thus formed shaped article to a second temperature effective to reactivate the curing agent and thereby fully curing the resin system to provide a synthetic shaped article simulating marble, granite or the like.
Dependencies are inferred from the claim text.