Cho et al have developed a printed circuit board in which an oxidant capable of polymerizing
conductive polymers is selectively imprinted on a substrate along with the monomer of a conductive polymer.
Sorona PTT is made by polymerizing
Bio-PDO with either terephthalic acid or dimethyl terephthalate.
When an actively polymerizing
strand electrically contacts a nonconductive strand, the nonconductive strand switches into its conductive state in the region close to the connection.
These include volatile sulfur and phosphorous compounds (especially H2S and SO2), corrosive substances (HCl, NO2, Cl2), polymerizing
substances, organometallic compounds (e.
Key statement: A method for producing a conjugated diene polymer is provided that includes a step of polymerizing
a conjugated diene-containing monomer in a hydrocarbon solvent in the presence of an alkali metal catalyst, thus giving a polymer having a catalyst-derived alkali metal at one terminus of a polymer chain comprising a conjugated diene-based monomer unit, and a step of reacting the polymer obtained in the step of polymerizing
and a trialkoxysilane compound represented by the formula:
Valspar Sourcing has received a patent for a method for finishing a veneer surface of a veneered wood product comprised of applying to the veneer surface and UV curing a plurality of coating layers, which method comprises the steps of applying and cationically polymerizing
at least one subsurface layer comprising a UV curable cationically polymerizable moiety and applying and free radically polymerizing
an outermost layer comprised of a free radically polymerizable moiety, wherein a coating layer nearest the veneer surface comprises a cationically polymerized moiety or moiety polymerized via cationic and free radical cure mechanisms, and wherein the finished veneer surface exhibits less veneer checking than a veneer finished only with free radically polymerized coating layers.
This method is based on the simultaneous use of two different catalysts, each polymerizing
a different monomer with a way to interrupt and restart the process to produce block copolymers.
This will be done by functionalizing the nanotube and polymerizing
engineering resins like PPS, PPO, and PEEK directly on it," says William Diecks, a marketing manager at Chevron Phillips Chemical Co.
To do this required calculating, through computer modeling, the precise combination of processing characteristics--such as polymerizing
temperature and ratio of catalyst to monomer--that would minimize unused monomer, Tunc says.
CBT 200 resin is formulated for various casting, low pressure moulding, coatings and composite applications where the lower melt temperature allows for longer working time than CBT 100 resin before polymerizing
into the engineering thermoplastic PBT.
Gharda currently operates a 120,000-lb/yr semi-works plant in Panoli, Gujarat, for polymerizing
its version of PEEK.
As proven in the development of tubulin polymerizing
agents, determination of the optimal dosing regimen is critical in the efficient development of drug candidates in this class.
Key statement: A process for preparing a polydiene, the process comprising the step of polymerizing
conjugated diene monomer in the presence of a dihydrocarbyl ether, where said step of polymerizing
takes place within a polymerization mixture that includes less than 20% by weight of organic solvent based on the total weight of the polymerization mixture, and where said step of polymerizing
employs a lanthanide-based catalyst system that includes the combination of or reaction product of ingredients including (a) a lanthanide compound, (b) an aluminoxane, (c) an organoaluminum compound other than an aluminoxane, and (d) a bromine-containing compound selected from the group consisting of elemental bromine, bromine-containing mixed halogens, and organic bromides.