Industrial resin

TRADE SALES AUTOMOTIVE INDUSTRIAL RESIN PRODUCTS... 

The emphasis of the current research is on molecular structure of oligomeric fractions leached from quality cured, industrial resins. However, the potential for applications in quality control should not be overlooked. Chromatography analysis provides positive feedback capable of molecular descriptions of extent of cure actually achieved. Oligomeric distributions coupled to kinetic reaction analysis allows for detailed estimates of crosslink architecture within the resin (7). 

P = 1) systems while the apparent activation energy markedly decreases in the same series AEapp for the linear polymer DGER-AN is close to the typical value for many polymers 57 59). The results testify that the fragment (segment) of the network which is responsible for a-transition is in average smaller than that of a linear polymer. The temperature range of the T transition for the networks is markedly narrower than that for linear polymers and epoxides prepared from industrial resins 13,19). This points to a narrower distribution of relaxation times in the considered networks as compared with other crosslinked polymers. 

Another contrarian, DSM in the Netherlands, had been a state-owned company before it became privatized, a process that began in 1989 and was completed in 1996. From its past it had inherited positions in fertilizers, industrial chemicals, and such intermediates as melamine and caprolactam as well as polyolefins, with access to basic olefins through its own crackers in Geleen, Netherlands. In 1997 DSM acquired the polyethylene and polypropylene operations of FIuls (VEBA) with the Gelsenkirchen site. The company had also diversified into elastomers, having purchased in the United States the Copolymer Rubber and Chemical Corporation, which contributed to DSM s expansion into the fields of ethylene propylene, styrene butadiene, and nitrile rubbers. DSM is also a supplier of industrial resins and engineering... 

There have been many attempts to replace these resins with lignin derivatives for wood composite adhesives suitable for plywood, particleboard and waferboard. Most of these studies have been empirical in nature, and few have achieved further consideration for industrial application. As wood binders, technical lignins are variable in quality and poorly reactive in comparison to conventional resin systems such as phenol-formaldehyde (PF) resins. Consequently, they are not utilized on their own. Indeed, if they were, this would adversely affect production quality and times, and necessitate equipment changes. In the wood composite industry, resins having such deleterious effects are not likely to be used even if savings could be made in terms of material costs. 

Chiou and Letton (1992) examine the chemorheology of a complex industrial resin, Hercules 3501-6, containing a major epoxide (TGDDM), two minor epoxides (alicyclic diepoxy carboxylate and epoxy cresol novolac), a hardener (diaminodiphenyl sulfone, DDS) and a Lewis-base catalyst (boron trifluroride monoethylamine complex). They found that both the conventional WLF model (Equation (5.26)) (Ferry, 1980) and a modified WLF model (Equation (5.27) were appropriate to describe the chemorheology ... 

Ryan and Kamal (1976) discuss a combined chemoviscosity model as described in Equation (5.31) for an unfilled liquid epoxy resin (DGEBA/MPDA and Fiberite industrial resin), namely... 

In the aerospace industry, resinous polymers encompass a wide variety of hardware applications for aircraft, missiles, and space structures. In aircraft, resins are used as a matrix material for primary (flight-dependent) and secondary fiber-reinforced composite (FRC) structures, adhesives for the bonding of metal and composite hardware components, electronic circuit board materials, sealants, and radomes. Missile applications include equipment sections, motor cases, nose cones, cartjon-carbon composites for engine nozzles, adhesive bonding, and electronics. As the exploration of outer space intensifies, applications will become even more exotic. FRC will be used to construct telescopes, antennas, satellites, and eventually housing and other platform structures where special properties such as weight, stiffness, and dimensional stability are important. 

Fixon. [Chemonic Industries] Resin complex aftertreatments for direct, reactive, sulfur and acid dyes. 

VaKte. [Valite] Industrial resins and medding compds. 

Polyamides are well-known industrial products having applications in many areas (7). For instance, the Nylon polymers (water-insoluble polyamides) are widely used in fibers. A water-soluble poly(aminoamide), derived from adipic acid and diethylene triamine, is the precursor to a well-known industrial resin (2). This poly(aminoamide) is currently produced by a chemical reaction at elevated temperatures which is accompanied by the formation of some branched structures. Subsequent derivatization of this polyamide produces a water-soluble resin, known for its ability to impart wet strength to paper and paper products (2a, 2b) and shrink proofing to wools and other textiles (2c). 

Part 111 describes in detail the use of hypercrosshnked sorbents, both industrial resins and laboratory-made polymers, for the sorption of organic compounds from air, water, and biological liquids and for the pre-concentration of analytes in SPE, as well as the use of hypercrosshnked resins as matrices for ion-exchange resins and as separating media in gas and hquid chromatography. 

An example where a mass balance approach would yield inaccurate emissions to the atmosphere would be an industrial resin coating line. This process uses an organic carrier solvent, such as ethanol, which is volatized from the resin solids in a drying oven. The vapors (volatile organic compounds [VOCs]) are then incinerated. The ethanol can be transformed into other organic compounds in the incinerator. The total mass of applied carrier solvent (ethanol) would not be accounted for in the incinerator exhaust gas stream due to its transformation into other organic compounds. 

However, only about 3% of UF resins are used for molding powders. The hulk (about 85%) of the resins are used as adhesives in the particleboard, plywood, and furniture industries. Resins for these applications are commonly available with U/F molar ratios ranging from 1 1.4 to 1 2.2. 

The commodity thermosets of urea, melamine, and phenolics account for about one-third of building and construction industries resin consumption. Most of this is used for resin-bonded woods such as plywood, particle board, and oriented strand board. High-density polyethylene (HDPE), used primarily for rigid piping, accounts for about 5% of consumption. Other significant resins, accounting for 3-5% of total consumption, include other polyethylenes, unsaturated polyester, and polystyrene. 

The Karanja tree grows in India, mainly in coastal areas and tidal forestland. It is a non-edible and non-drying oil which is used in the preparation of various industrial resins. 

Canadian Plastics Industry, Resin Coding, http //www.plastics.ca/newsroom/ default.php ID=344. 

Some recovered post-consumer and post-industrial resins are for sale in pellet fomi for manufacturers to utilize in production. Table 3.3 shows producers/companies which produce such pellets. 

Triglycidyl isocyanurate is a triazine epoxy compound used as a resin hardener in polyester powder paints, in the plastic industry, resin mouling systems, inks, and adhesives. Occupational contact dermatitis can occur in people producing this chemical, in those producing the powder coat paint and in sprayers. 

Business Unit Industrial Resins Compounds Ceintuuriiaan 5 P.O. Box 615... 

Vinyl acetate content wt% 3-32 (packaging resins) 9-40 (Industrial resins) ... 

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