Mahindra & Mahindra has been granted a patent for a coating composition that protects automobile underbodies from stone chipping damage and corrosion. The composition includes a mixture of polyvinyl chloride homopolymer and polyvinyl chloride co-polymer resin, reducing film thickness while maintaining quality standards. The specific composition includes various weight percentages of different components such as plasticizer, adhesion promoters, additives, mineral derivatives, mineral fillers, and solvent. GlobalData’s report on Mahindra & Mahindra gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Mahindra & Mahindra, Battery pack swapping was a key innovation area identified from patents. Mahindra & Mahindra's grant share as of September 2023 was 14%. Grant share is based on the ratio of number of grants to total number of patents.

A recently granted patent (Publication Number: US11773284B2) discloses a coating composition specifically designed for automobile underbodies. The composition consists of various components in specific weight percentages.

The coating composition includes 20% polyvinyl chloride (PVC) homopolymer and 11% PVC copolymer resin. It also contains 31% plasticizer, 3.5% adhesion promoters, 1.25% additives, 4% mineral derivatives, 23.25% mineral fillers, and 6% solvent. The PVC copolymer resin is a combination of PVC and polyvinyl acetate copolymer resin.

The PVC homopolymer is further divided into two types, with 11% being Type 1 and 9% being Type 2. The plasticizer used in the composition is a phthalate ester. The adhesion promoters consist of 0.5% modified polyamide, 2% polyamido amine, and 1% blocked aliphatic polyisocyanate.

The additives in the composition include a mixture of 0.25% thixotropic agent (silicon dioxide), 0.50% moisture scavenger (3-ethyl-2-methyl-2-3-methyl-butyl-1-3-oxazolidine), 0.25% filler (barium titanate glass), and 0.25% swelling agent (sodium and silicon oxide bubble).

The mineral derivatives used in the composition are calcium oxide, zinc oxide, or a mixture of both. The composition contains 3% calcium oxide and 1% zinc oxide as mineral derivatives.

For mineral fillers, the composition uses precipitated calcium carbonate, ground calcium carbonate, or a mixture of both. The composition consists of 18.25% precipitated calcium carbonate and 5% ground calcium carbonate as mineral fillers.

The solvent used in the composition is a paraffinic solvent.

The patent also describes a method for preparing the coating composition. The method involves adding all the components, including PVC homopolymer, PVC copolymer resin, plasticizer, adhesion promoters, additives, mineral derivatives, mineral fillers, and solvent, to a mixer. The components are mixed, transferred to a holding tank, and then filtered.

In summary, this granted patent discloses a specific coating composition for automobile underbodies. The composition includes various components in specific weight percentages, such as PVC homopolymer, PVC copolymer resin, plasticizer, adhesion promoters, additives, mineral derivatives, mineral fillers, and solvent. The patent also provides a method for preparing the coating composition.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.