Polysulfone trade names

The first aromatic sulfone polymer produced commercially was introduced as Bakelite polysulfone but now is sold by Union Carbide under the trade name Udel. It is made by reaction of the disodium salt of bisphenol A (BPA) with 4,4 -dichIorodiphenyl sulfone in a mixed solvent of chlorobenzene and dimethyl sulfoxide (eq. 12). 

Proprietary blend formulations based on polysulfone, polyethersulfone, and polyphenylsulfone are sold commercially by Amoco Corporation to meet various end use requirements. The blends based on polysulfone are sold under the MINDEL trademark. A glass fiber-reinforced blend based on PES is offered under the trade name RADEL AG-360. This offers most of the performance characteristics of 30% glass fiber-reinforced polyethersulfone but at a lower cost. Two blend product lines are offered based on PPSF. These are designated as the RADEL R-4000 and R-7000 series of products. The former is a lower cost alternative to RADEL R PPSF homopolymer offering most of the performance attributes unique to PPSF. The R-7000 series of resins have been formulated for use in aircraft interiors for civil air transport. They exhibit a very high degree of resistance to flammabihty and smoke release. 

There are three commercial suppHers that manufacture polysulfones Amoco Corporation ia the United States, BASF Corporation ia Germany, and Sumitomo Chemical Company ia Japan. A listing of the resias suppHed by each of these companies along with the trade names particular to each of these suppHers is shown ia Table 9. AH three companies supply a polyethersulfone-type product. Polysulfone, on the other hand, is suppHed by Amoco and BASF, and Amoco is the sole suppHer of polyphenylsulfone. 

Table 9. Manufacturers and Trade Names of Commercially Available Polysulfones ...

SuppHer Polysulfone types offered Trade name... 

Polysulfones are handicapped by their light and UV sensitivity, requiring efficient protection for outdoor exposure sensitivity to environmental stress cracking and attack by chemicals such as aromatic hydrocarbons, chlorinated solvents and ketones the cost, justified by the performances a sometimes insufficient fire resistance, but special grades are marketed. Trade name examples Acudel, Mindel... 

Polysulfones exhibit excellent thermal oxidative resistance, and resistance to hydrolysis and other industrial solvents, and creep. The initial commercial polysulfones were synthesized by the nucleophilic replacement of the chloride on bis(p-chlorophenyl) sulfone by the anhydrous sodium salt of bisphenol A. It became commercially available in 1966 under the trade name Udel. It exhibits a reasonably high Tg of 190°C. 

Union Carbide, in 1976, made available a second generation polysulfone under the trade name Radel. Radel was formed from the reaction of a bisphenol and bis(p-chlorophenyl) sulfone (structure 4.76). This polysulfone exhibits greater chemical and solvent resistance, greater Tg of 220°C, greater oxidative stability, and good toughness in comparison to Udel. 

Hazardous Decomp. Prods. Heated to decomp., emits very toxic fumes of Cl and SOx Uses Intermediate for prod, of polysulfone Manuf./Distnb. ABCR http //www.abcr.de, Acros Org. http //www.acros.be] Alfa Aesar http //www.alfa.com] Biddle Sawyer http //www.biddlesawyer.com] Cambrex http //www. cambrex. com D O http //www.dochem.com] Lancaster Synthesis Pfaltz Bauer http //www.pfal1zandbauer.com] TCI Am. http //www.tciamerica. com Trade Name Synonyms DCDPS [Seal Sands Chems. Ltd... 

Chemical Name Polysulfonic acid polymer Trade Name Kraft Polymer 80-11... 

Other elastomer blends of commercial utility have been cited in the literature [96-98]. Polyolefin blends have been utilized in many forms to achieve modifications yielding environmental stress rupture resistance and to improve impact strength, flexibility, and filler acceptance [99,100]. The addition of ethylene-propylene rubber (EPR) or blends of EPR and high-density PE to PP has been specifically utilized for improving the low-temperature impact strength [101]. Low-modulus materials can be produced from EPR-PP blends containing more than 50% of EPR. These products include those under the trade names TPR, Somel, and Telcar [102-105]. Addition of rubber inclusion has been shown to yield definite improvements in the environmental stress rupture resistance [106]. Other examples of commercial rubber-based blends are impact-PS, ABS and bisphenol A polycarbonate blends and polysulfone blends made of a block copolymer of polysulfone and nylon 6 [107]. 

Type (Trade name) SAN (SAN 35) ABS (Cycolac X-37) ABS (Cycolac GSM) Nylon (612) Modified PPO (Noryl SE-1) Polysulfone (P-1700)... 

In 1976 Union Carbide introduced a second-generation polysulfone resin under the Radel R polyphenylsulfone, PPSU, trade name. This higher performing PPSU was prepared from 4,4 -biphe-nol and DCDPS [28]. PPSU has a Eg of 225°C. Its structure is shown in Fig. 1.14. The biphenyl moiety imparts enhanced chemical/solvent resistance, outstanding toughness, greater resistance to combustion, and enhanced thermo-oxidative stability. 

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