Styrene and isobutylene are two monomers, which are difficult to copolymerize satisfactorily. We have developed a feasible route for the synthesis of inimer (IM), a compound carrying both an initiator and a monomer functionality, which can be copolymerized with an olefin. We expect to obtain hyperbranched copolymers of styrene and isobutylene using the synthesized inimer.

The fluid is a composition of water and polymer which may be crosslinked with an agent. When the polymer is polyvinylalcohol the crosslinker is sodium tetraborate and for the polyacrylamide is glyoxal. It may be necessary to adjust the pH of the solution using a water solution of sodium hydroxide. Fluid properties may be adjusted within limits by appropriate concentration and type of these constituents. The gel concentration can be varied to suit

Diene-styrene block and random copolymers with 65000-100000 molecular weight and the micro structure of polybutadiene 1,2 predominately were hydrogenated in presence of the soluble Ziegler catalysts. The hydrogenation reactions were carried out in autoclave at 80oC temperature and 6 atm pressure for 2-4 hours, conditions that will substantially saturate about 80-95% of the olefin double bonds. Cobalt octoate catalyst, prepared from n-octanoic acid

Durability performances of a composite material manufactured from reclaimed thermoplastics reinforced with natural fibres were tested. This paper presents weathering evaluation of the commercial product Enviroshake®, a “high tech” composite roofing material that replicates the look of a cedar shake. An extensive testing program designed to assess the ageing process of this composite was employed over one year period. Studies were performed on

Wellington Polymer Technology Inc. (WPTI) is the manufacturer of a composite roofing product called the Enviroshake®. This product is an alternative to traditional premium roofing materials and is suitable for steeped-sloped applications. Today, the company is successfully penetrating the market barriers in the US and Canada by maintaining a commitment to innovation and product quality. The expanding market and the continuing acceptance for the

The product of Wellington Polymer Technology Inc. (WPTI), identified as Enviroshake®, is a composite roofing material representing an alternative to traditional premium cedar roofing. Wellington Polymer Technology Inc. has been assessed and registered as conforming to ISO 9001:2000. Components used in this product are recycled plastics, recycled rubber and natural fibers. This paper covers some of the technical requirements and acceptance criteria

Low cost agricultural fibers or wood flour can be considered as fillers that enhance the flexural properties of the thermoplastic composites with some effect on the composite strength. A case study comparing a residual material of flax, after removal of the long fibers, named flax straw and wood flour derived from a hardwood (oak 20 mesh size) was employed at Wellington Polymer Technology Inc., manufacturer of the roofing material Enviroshake®.

A pilot unit was designated for the online testing of the catalytic hydrolisis of Me chloride based on elec. measurements. The unit was equipped with an online elec.measurement system as well as an online gas chromatograph to understand what exactly was occuring in the packed bed of the alumina catalyst. Exptl. results showed that significant and consistent differences between fresh and deactivated catalysts can be identified by empirical observation.