Patent classifications
C08L2666/22
Thermoplastic composition based on polyamide, polyketone and novolac resin
A thermoplastic composition based on polyamide and polyketone is described. The thermoplastic composition can have an excellent mechanical strength and dimensional stability. Further, the composition can include a novolac resin and a reinforcing or a bulking filler. The composition can be molded, for example in the form of granules or powder, which is used for manufacturing articles via an injection-molding process.
Process for preparing a reinforced and reactive thermoplastic composition, and this composition
A process for preparing a reinforced and reactive thermoplastic composition having a continuous phase based on a thermoplastic polymer and dispersed therein is a discontinuous phase based on a reactive reinforcing agent that may be immiscible with the thermoplastic polymer is provided. A composition obtained by this process is also provided. The reinforcing agent is selected from the group consisting of epoxy resins, polyorganosiloxanes having SiH functional group(s), diisocyanates or polyisocyanates and mixtures thereof, comprises a grafting, a branching and/or a crosslinking, that are carried out in situ, by reactive compounding of these phases with a shear rate greater than 10.sup.2 s.sup.1, of the reinforcing agent onto the chain of the thermoplastic polymer, so that the discontinuous phase is dispersed homogeneously in the continuous phase in the form of nodules having a number-average size of less than 5 m.
Process for preparing a reinforced and reactive thermoplastic composition, and this composition
A process for preparing a reinforced and reactive thermoplastic composition having a continuous phase based on a thermoplastic polymer and dispersed therein is a discontinuous phase based on a reactive reinforcing agent that may be immiscible with the thermoplastic polymer is provided. A composition obtained by this process is also provided. The reinforcing agent is selected from the group consisting of epoxy resins, polyorganosiloxanes having SiH functional group(s), diisocyanates or polyisocyanates and mixtures thereof, comprises a grafting, a branching and/or a crosslinking, that are carried out in situ, by reactive compounding of these phases with a shear rate greater than 10.sup.2 s.sup.1, of the reinforcing agent onto the chain of the thermoplastic polymer, so that the discontinuous phase is dispersed homogeneously in the continuous phase in the form of nodules having a number-average size of less than 5 m.
Coating systems for cement composite articles
A method for making a coating composition by mixing one or more latex polymers and an aliphatic epoxy resin system having an epoxy equivalent weight less than 1000 and being distinct from the one or more latex polymers to provide an aqueous first component, and providing a second component having reactive groups that can react with the one or more epoxy resins. A mixture of the first and second components provides a film-forming curable coating composition that may be used on substrates including cement, cement fiberboard, wood, metal, plastic, ceramic, glass and composites.
Coating systems for cement composite articles
A method for making a coating composition by mixing one or more latex polymers and an aliphatic epoxy resin system having an epoxy equivalent weight less than 1000 and being distinct from the one or more latex polymers to provide an aqueous first component, and providing a second component having reactive groups that can react with the one or more epoxy resins. A mixture of the first and second components provides a film-forming curable coating composition that may be used on substrates including cement, cement fiberboard, wood, metal, plastic, ceramic, glass and composites.
FLUORINATED SURFACTANTS FOR MAKING FLUOROPOLYMERS
The invention provides a method for making a fluoropolymer and a method for preparing a fluorinated surfactant.
FLUORINATED SURFACTANTS FOR MAKING FLUOROPOLYMERS
The invention provides a method for making a fluoropolymer and a method for preparing a fluorinated surfactant.
AQUEOUS ORGANIC PEROXIDE EMULSIONS
A method includes the step of using an aqueous organic peroxide emulsion comprising from 0 to 0.17 wt. % of at least one emulsifier, to prepare polyvinyl chloride with an increased rate of drying. An emulsion includes from 30 to 45 wt. % of diisobutyryl peroxide; from 2.0 to 6.0 wt. % of at least one protective colloid; from 0 to 0.17 wt. % of at least one emulsifier; and at least one anti-freeze agent. A process for preparing a polyvinyl chloride polymer with a normalized drying rate of greater than 0.840 at time t* of 0.5 includes polymerizing monovinyl chloride monomer using an aqueous organic peroxide emulsion, wherein the aqueous organic peroxide emulsion comprises from 0 to 0.17 wt. % emulsifier.
Polyamide powder and method for coating an object by melting said powder
The present invention relates to a coating composition in the form of a loose powder including the following by weight: 50% to 99.99% of polyamide powder, and 0.01% to 0.5% of polypropylene glycol, out of the total weight of the composition. The present invention relates in particular to a coating composition in the form of a powder including the following by weight: 50% to 99.9% of polyamide powder, 0.01% to 10% of at least one pigment and 0.01% to 0.5% of polypropylene glycol, out of the total weight of the composition. The present invention relates in particular to the use of said composition in methods for coating objects, in particular metal, by means of stuccoing.
Polyamide powder and method for coating an object by melting said powder
The present invention relates to a coating composition in the form of a loose powder including the following by weight: 50% to 99.99% of polyamide powder, and 0.01% to 0.5% of polypropylene glycol, out of the total weight of the composition. The present invention relates in particular to a coating composition in the form of a powder including the following by weight: 50% to 99.9% of polyamide powder, 0.01% to 10% of at least one pigment and 0.01% to 0.5% of polypropylene glycol, out of the total weight of the composition. The present invention relates in particular to the use of said composition in methods for coating objects, in particular metal, by means of stuccoing.