Polymers

Bio-based adhesive with alkyd resin entirely derived from natural feedstock

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Alkyd resins are one of the commercially most mature resins. They are considered near-green because of significant amount of natural ingredient. If alkyd resins are produced entirely with natural ingredients, they offer the complete bio based adhesive system. Typically the alkyd resins have over 75% natural ingredients as they are derived from vegetable oils and …

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Olefin Metathesis as the substitute for Formaldehyde to Crosslink Cellulose

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The Challenge / Concern: Croslinking of cellulose is desired for various reasons such as to increase strength of fabric or paper. Classical cellulose cross linking systems, such as compounds using N-methylol chemistry, release formaldehyde, known to be a human carcinogen. Hence a safer and effective alternative is desired.   Brief (and non-confidential) Solution Cellulose modifications …

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Polypropylene nano-composite with superior barrier properties

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The Challenge / Concern: Polypropylene (PP) is used for packaging of several items. One of the clients was seeking improvement in its barrier properties by virtue of packaging. If the material has lower transfer rates for moisture and gases such as oxygen, nitrogen and carbon dioxide, this material can be effectively used for food packaging …

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Monomer content reduction in finished polymer

Polymers / , , ,

The Challenge/Concern Typical polymerization (especially free radical) reaction rarely achieve the completion, leading to the presence of unreacted residual monomer in the polymer. Besides affecting polymer properties, residual monomers are also often toxic and affect compatibility. A process for production of four different polymers having very low levels of residual monomers was desired. Brief (and …

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