Leverkusen, Germany - Bayer MaterialScience AG says it has developed polyols based on up to 70 percent by weight on renewable raw materials. The group adds that increasing the proportion of natural raw materials to this extent, "usually involves adapting the products' properties to the performance of crude-oil-based polyurethane raw materials."
But, BMS adds, high-potential products containing higher proportions of vegetable oils have now been developed. These new products allow natural resources to supplement non-renewable raw materials and "can help to prevent emissions when the right components and chemical process steps are selected," said BMS, in a 16 Oct statement.
The company is presenting a range of exhibits with potential applications on its stand at K 2007, being held 24-31 Oct in Düsseldorf, Germany.
On its stand, BMS will feature various products made with bio-polyols:
* All-foam mattresses using a new cold-curing foam with a polyol component marked by its high share of renewable raw materials. The polyol is already available in industrial-scale volumes. Extensive development work has produced "green" foams with the same good properties as standard products.
* Bayer MaterialScience will also presents a moulded-foam part, typically used in car seats, made using largely renewable polyol.
* A high-end refrigerator from Liebherr, insulated in Baytherm polyurethane rigid foam with high energy efficiency classification of A+. BMS says this uses double the proportion of renewable raw materials found in conventional polyurethane insulating foam systems.
* Lastly, flooring material made by combining a viscoelastic flexible foam with textile overlays and a soft pile uses "an extremely high volume of a polyol based on modified vegetable oils.," said BMS. And it does so with no adverse effect on technical properties such as tensile strength and durability.
The group did not reveal any details of the raw materials used to make the polyols, or its capacity to make the materials.