Synthetic Rubbers for Adhesives and Sealants

Resonac Chloroprene 671A by Resonac (formerly Showa Denko) is a high solid, anionic, aqueous dispersion of a high-gel chloroprene polymer. It offers a high wet gel strength and medium-slow crystallization rate. It has good storage stability, but pH decreases with time, and the rate depends on temperature and air exposure. The decrease is indicative of structural changes in the polymer and alterations in the colloidal properties of the latex. Resonac Chloroprene 671A is primarily used in dipped goods applications and is suitable for elastomer-based adhesives.

Resonac Chloroprene AF by Resonac (formerly Showa Denko) is a carboxylated chloroprene copolymer. It has a slow crystallization strength and milling normally is required for optimum solution quality. It provides the rapid bond strength development and the greatest hot bond strength.

• Excessive time and temperature of storage can cause a change in color and an increase in viscosity.
• It is primarily used in contact adhesives that require very high initial and ultimate bond strength and the ability to form bonds with minimum pressure over short open assembly periods.
• The compounded adhesives offer high cohesive strength derived from reaction with metal oxides.
• Resonac Chloroprene AF is used in demanding applications such as heat-formed high-pressure laminates and automotive trim attachments.

Resonac Chloroprene 115 by Resonac (formerly Showa Denko) is a medium solid, carboxylated, non-ionic, aqueous dispersion of a low-gel copolymer of chloroprene and methacrylic acid stabilized with polyvinyl alcohol. It has good storage stability and broad tolerance to many materials destabilizing liquid dispersion. It offers hot bond strength and has a slow crystallization rate.

• The pH decreases with time and the rate depends on temperature and air exposure that is indicative of structural changes in the polymer and alterations in the colloidal properties of the latex.
• Resonac Chloroprene 115 is used in contact adhesives and sealants.

Exxon™ Bromobutyl 2255 by ExxonMobil Chemical is a brominated copolymer of isobutylene and isoprene. It is used in adhesives and sealants. It possesses low permeability to air, gases and moisture, fast cure rates, low glass transition temperature and wide vulcanization versatility. Exxon™ Bromobutyl 2255 offers benefits such as resistance to ageing and to weathering from atmospheric exposure and vibration damping. It contains non-staining antioxidant as an additive.

Exxon™ Bromobutyl 2244 by ExxonMobil Chemical is a brominated copolymer of isobutylene and isoprene. It is used in adhesives and sealants. It possesses low permeability to air, gases and moisture, fast cure rates, low glass transition temperature and wide vulcanization versatility. It offers benefits such as resistance to ageing and to weathering from atmospheric exposure and vibration damping. Exxon™ Bromobutyl 2244 contains non-staining antioxidant as an additive.

Exxon™ Butyl 065 by ExxonMobil Chemical is a copolymer of isobutylene and isoprene. It is used in adhesives and sealants. It contains non-staining antioxidant as an additive. Exxon™ Butyl 065 is a white to light amber bales.

Exxon™ Bromobutyl 2211 by ExxonMobil Chemical is a brominated copolymer of isobutylene and isoprene. It is used in adhesives and sealants. It possesses low permeability to air, gases and moisture, fast cure rates, low glass transition temperature and wide vulcanization versatility. It contains non-staining antioxidant as an additive. Exxon™ Bromobutyl 2211 offers benefits such as resistance to ageing and to weathering from atmospheric exposure and vibration damping.

Exxon™ Bromobutyl 2222 by ExxonMobil Chemical is a brominated copolymer of isobutylene and isoprene. It is used in adhesives and sealants. It contains a non-staining antioxidant as an additive.

• Possesses low permeability to air, gases, and moisture, fast cure rates, low glass transition temperature, and wide vulcanization versatility.
• Exxon™ Bromobutyl 2222 offers benefits such as resistance to aging and to weathering from atmospheric exposure and vibration damping.

Exxon™ Butyl 365 by ExxonMobil Chemical is a copolymer of isobutylene and isoprene. It contains non-staining antioxidant as an additive. Exxon™ Butyl 365 is a white to light amber bales. It is used in adhesives and sealants.

Exxon™ Bromobutyl 2235 by ExxonMobil Chemical is a brominated copolymer of isobutylene and isoprene. It contains non-staining antioxidant as an additive. It is used in adhesives and sealants. It possesses low permeability to air, gases and moisture, fast cure rates, low glass transition temperature and wide vulcanization versatility. Exxon™ Bromobutyl 2235 offers benefits such as resistance to ageing and to weathering from atmospheric exposure and vibration damping.