ROHM AND HAAS ACRYLIC MONOMER SERVICE - C&EN Global

Nov 6, 2010 - ROHM AND HAAS ACRYLIC MONOMER SERVICE. Chem. Eng. News , 1966, 44 (22), pp 26– ... Email a Colleague · Add to ACS ChemWorx ...
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ROHM AND HAAS ACRYLIC • reduces raw material costs • lowers handling expenses

BENEFITS FROM AVAILABILITY OF BROAD RANGE OF RAW MATERIALS-By supplying 20 different acrylic monomers, plus emulsifiers and auxiliary chemicals used in polymer manufacture, Rohm and Haas serves as your most convenient source of raw materials for producing acrylic copolymers. You save purchasing time, paperwork, and money when your raw materials are ordered and shipped together.

with very low inhibitor content. For example, butyl acrylate is offered in a grade having only 5 ppm monomethyl ether of hydroquinone as inhibitor. Advantages from use of low-inhibitor monomers are particularly evident in copolymerizations where low total content of inhibitor introduced by all comonomers may provide: (1) shorter processing cycles resulting from decreased induction periods, (2) smoother, more reproducible polymerization reactions, (3) more complete conversion of monomer, and (4) superior color in product.

Complete Line of Surfactants and Reducing ROHM AND HAAS ACRYLIC AND METHACRYLIC MONOMERS Methyl Acrylate · Ethyl Acrylate · Butyl Acrylate · 2Ethylhexyl Acrylate · Methyl Methacrylate · Ethyl Methacrylate · Butyl Methacrylate · Isobutyl Methacrylate · Lauryl Methacrylate · Stearyl Methacrylate · Dimethylaminoethyl Methacrylate · t-Butylaminoethyl Methacrylate · Hydroxyethyl Methacrylate—30% · Hydroxyethyl Methacrylate—96% · Hydroxypropyl Methacrylate —40% · Hydroxypropyl Methacrylate—96% · Butylène Dimethacrylate · Glacial Acrylic Acid · Glacial Methacrylic Acid · Methacrylamide

Rohm and Haas7 broad range of monomers permits the design of polymers varying from water-soluble to water-insoluble film-forming materials, and from rubbery to hard plastics. Functional-Group Monomers —Rohm and Haas monomers with functional groups (see list above) make possible the introduction of carboxyl, hydroxyl, amino, or amido groups into copolymers . . . for control of solubility, adhesion, pigment-binding capacity, crosslinking capability, dye receptivity, mechanical stability, or freeze-thaw stability in polymeric products. Low-Inhibitor Monomers —Most Rohm and Haas monomers are available with a choice of several inhibitor concentrations . . . including monomer grades 26 C&EN

Agents—Rohm and Haas' broad range of TRITON®, PRIMINOX®, and HYAMINE® nonionic, anionic, and cationic surfactants lets you make selections just right for your polymerization recipe . . . to give the polymerization rate, particle size, molecular weight, and emulsion stability you need. In redox polymerization, Rohm and Haas sodium hydrosulfite (LYKOPON®) and sodium sulfoxylate formaldehyde (FORMOPON®) are used as reducing agents. They induce decomposition of catalyst at relatively low temperatures and provide a rapid polymerization rate without external heating. PURCHASING ASSISTANCE You can buy comparatively small amounts of material at bulk prices by ordering combination tanktruck volumes, and you obtain truckload prices on mixed shipments in drums—when total quantities of material shipped meet minimum tariff weights. Rohm and Haas technical representatives help yoi calculate the most economical way to purchase acryli< monomers, surfactants, and reducing agents. By ana lyzing carrier rates and providing detailed delivere< cost data on various combination purchases, they ca: help you plan lowest cost purchasing.

MONOMER SERVICE improves quality of your polymers keeps you up-to-date on latest developments in acrylic technology ENGINEERING AND TECH­ NICAL ASSISTANCE-Engineering assistance by special­ ists is available for designing acrylic monomer handling and storage systems in your plant. Assistance can also be pro­ vided on the design and con­ struction of reactors and other equipment used for polymerization. COPOLYMER CALCULA­ TION SERVICE-Monomers are incorporated into copoly­ mers at different rates. Rohm and Haas computer service can give you information on: 1) range of compositions of a copolymer formed from a given charge, 2) compositions of copolymer produced at various degrees of conver­ sion, 3) monomer sequence distribution along a poly­ mer chain, and 4) scheduling of monomer addition to reactor to improve polymer uniformity. GLASS TEMPERATURE ANALYZER—In copolymer development, it is helpful to estimate the influence of each monomer on the glass temper­ ature of a copolymer, before beginning work at the lab bench. As a service to acrylic monomer users, Rohm and Haas developed the Glass Temperature Analyzer which permits very quick approximation of glass temperatures of 100%-acrylic copolymers, and copolymers of acrylates and methacrylates with other common monomers. TECHNICAL LITERATURE Topics discussed in Rohm and Haas technical bulletins in­ clude: polymerization param­ eters, catalysts, emulsion polymerization, copolymerization, copolymer composition calculations, thermosetting acrylics, emulsion particle size

determination, analytical methods, manufacturing processes, techniques for the storage and transfer of acrylic monomers, advantages gained by incorporating acrylate and methacrylate esters into copolymers with other monomers. In addition, Rohm and Haas publishes OR-CHEM TOPICS, a quarterly periodical with articles on sub­ jects related to Rohm and Haas monomers and organic chemicals. It presents new reactions and uses of our products, and discusses the application of theoretical concepts to the solution of practical problems. It also gives abstracts of recent papers and patents.

Mail to Dept. SP-6

ΗΟΗΜΠ iHRRSBS PHILADELPHIA. PENNSYLVANIA 19105

Please send: Π Bulletin giving detailed description of acrylic monomer services available from Rohm and Haas. Π List of acrylic monomer literature offered by Rohm and Haas. Π 36-Page bulletin on storage and handling of acrylic monomers. •

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Handbook of properties of Rohm and Haas surfactants.

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