Novel Polyolefin Additives for Automotive Offer Unprecedented Improvements

June 2, 2018 - garden totes

Milliken DeltaMax impact modifier

In bumpers and extraneous panels, that typically need normal loadings of 10-20% impact modifier, adding Milliken’s DeltaMax during 0.5-1% can revoke those loadings by half.

Talc-Filled Black-Pigmented TPO. 

Meeting Automotive Exterior UV Specification (SAE J2527) While Providing Lower Cost-to-Stabilize Ratio; Talc-Filled Black-Pigmented TPO. 

Meeting Automotive Interior UV Specification (SAE J2412) While Providing Lower Cost-to-Stabilize Ratio

Milliken HPN-715 nucleating technology

Milliken’s HPN-715 nucleating record provides aloft HDT, permitting PP to be used in underhood components like battery cases.

SAE J1756

SAE J1756 — Determination of a Fogging Characteristics of Interior Automotive Materials (Photometric Method). 

Delta Max i300 Impact Enhancer. 

Delta Max i300 Impact Enhancer. 



Every few years in a universe of additives for polyolefins, a few important products are launched that possibly plea or element timeless attention workhorses. Three such new additives, one from Solvay Technology Solutions, Saddle Brook, N.J., and dual from Milliken Company, Spartanburg, S.C., are directed essentially during PP interior, extraneous and underhood automotive components though also uncover poignant intensity for non-automotive applications.


Solvay Technology Solutions is a new business section that was shaped following Solvay’s merger of Cytec’s Cyasorb Cynergy Solutions, that develops and produces hindered amine light stabilizers (HALS) and several UV absorbers. The Polymer Additives div. of Solvay Technology Solutions has now grown what is pronounced to be a next-generation UV stabilizer—a multiple of a monomeric high-molecular-weight (HMW) HALS and a non-traditional UV absorber that reportedly meets all worldwide automotive UV weathering specifications.

New Cyasorb Cyxtra V9900, compared with dual other workhorse UV stabilizers, has been shown to consult aloft shimmer influence and superb tone fortitude that accommodate a toughest high-temperature interior weathering requirements. Moreover, it is pronounced to transcend automotive mandate such as low VOC emission, low fogging, and low odor, and does not meddle with paint adhesion. Says Andrea Landuzzi, tellurian selling executive for further technologies, “The automotive attention is fast branch to thermoplastic polyolefins (TPOs) and carbon-fiber reinforced plastics (CFRP) to assistance them rise lighter, some-more fuel-efficient automobiles with revoke emissions. The U.S. Corporate Average Fuel Economy (CAFE) customary increases a mileage of new automobile models from 39 miles to over 50 mpg by 2025, while in Europe OEMs contingency revoke CO2 emissions for new cars to 95g/km on normal from 2020.”

Cyxtra V9900 has been shown to strengthen a earthy properties and aesthetics of automotive TPOs opposite UV exposure, impassioned temperatures and other environmental factors. The association claims thisadvanced stabilizer d elivers an optimal change of estimate and cost efficiencies with a high grade of opening durability.

It can lift TPO opening in a extended operation of automotive applications, including bumpers, doorway panels, seatback covers, post moldings, doorway trims, instrument panels, conduct and side impact areas, buffer liners and flares, taillight housings, and cover vents. It has also been shown to strengthen surfaces of CFRP in aerospace and automotive components used in a BMW i3, as good as surfaces of 40% long-glass PP extraneous parts.

In further to polyolefin automotive stabilization, Cyxtra V9900 shows poignant intensity for use in multilayer rural films requiring increased weatherability and insecticide resistance. By a finish of a year, a association will have formula of rural film trials.


Milliken has a grown what is characterized as an surprising family of modifiers that paint a radical enrichment in further record for PP impact copolymers (ICPs) as good as recycled PP. The patent-pending DeltaMax family, described as novel reactive holder modifiers, reportedly maximize PP impact strength and MFR though compromising stiffness. These softened properties concede PP to be used in a wider operation of applications in some-more cost-effective ways. This is a new additives height further to Milliken’s line of clarifiers and nucleating agents.

According to Prem Patel, tellurian business-development manager for plastics additives, Milliken is already operative on a new era of DeltaMax additives with a concentration on functionality and value.

DeltaMax record reportedly is also rarely effective in modifying post-consumer and post-industrial recycled resins. It elevates impact and warp upsurge to a same turn as—or softened than—those of pure resin, a capability that allows compounders and converters to incorporate adult to 100% recycled PP though sacrificing opening or processing. The DeltaMax line now comprises 3 grades:

  • a200 All-Purpose Modifier, pronounced to yield a clever change of impact, rigidity and MFR to maximize a earthy properties and processability of ICPs.
  • i300 Impact Enhancer, pronounced to maximize impact strength while optimizing MFR for softened earthy properties and processability of ICPs.
  • m100 Melt Flow Modifier, pronounced to boost MFR while providing equal or softened impact opening to maximize earthy properties and processability of ICPs.

Says Patel, “DeltaMax modifiers residence a long-standing unmet need in a PP attention for aloft impact during aloft MFR. “DeltaMax concurrently improves both impact and warp upsurge in PP impact copolymers and recycled resins, that now enables converters to make tools stronger, lighter and faster than before. It also improves a sustainability form of a attention and provides a operation of other processing, energy-reduction and system-cost benefits. The net outcome is that converters, code owners and OEMs can now accommodate marketplace needs for aloft impact driven by e-commerce shipments and augmenting automotive reserve standards, while gripping a penetrating eye on improving sustainability and costs.”

Primarily targeted to processors regulating neat or recycled PP, a 3 DeltaMax modifiers are generally endorsed for use together, with standard masterbatch letdown ratios of 0.5-1%.

“Our goals was to urge PP overall, so we are indeed competing with specialty, higher-performance, higher-MFR, high-impact PP resins or competing with PP compounds that are impact modified,” explains Patel. In a latter case, 5-20% letdown ratio of impact modifier is typically used, that increases impact though decreases rigidity and reduces MFR. In fact, for some soothing TPOs, loadings of as most as 40% impact modifier are required, according to Patel.

DeltaMax modifiers reportedly offer processors a ability to boost impact performance, maximize warp flow, or grasp a accurate change of a two. The upsurge modifier can lift warp upsurge by as most as 5 times while progressing impact and stiffness.

This alleviation allows processors to boost handling efficiencies and emanate some-more innovative partial pattern with easier upsurge by molds. The impact modifier increases impact strength by as most as 3 times by optimizing rubber apportionment and domain size. This aloft impact opening allows compounders to diminution rubber calm to revoke weight and costs.

Automotive applications embody bumpers and extraneous panels, instrument panels, doorway panels and other interior components where low upsurge length is ideal, and underhood components such as battery housings. As partial of a product-development process, a association has tested DeltaMax with commander customers. In bumpers and extraneous panels, that typically need normal loadings of 10-20% impact modifier, further of DeltaMax during 0.5-1% can revoke those loadings by half, says Patel. As for battery cases, injection molders wish to work with a PP impact copolymer that has over 20 MFR vs. a standard 6-10 MFR.

Non-automotive aim applications for DeltaMax embody PP copolymers and compounds for housewares such as totes and hampers; lawn-and-garden products such as outdoor  seat and flowerpots; and industrial crates, battery cases and pails. These PP materials can also be used in apparatus components such as washer drums, fridge trays and engine housings.


HPN-715, a latest further to Milliken’s family of Hyperform nucleating agents, is engineered for injection molded PP and boasts rigidity increases of adult to 10% contra rival materials while progressing fascinating impact performance.

Optimized stiffness/impact change enables thinner-wall designs and reduces a need for fillers, compelling light weighting, pattern coherence and cost reduction. Moreover, this new nucleating record reportedly provides aloft HDTs than with other modernized nucleators, permitting PP to be used in car under-hood components, where it can potentially reinstate engineering resins like styrenics or nylons; and in ambiguous microwaveable containers and washing-machine and dishwasher components.

According to Bhavesh Gandhi, tellurian product-line manager, this powdered representative is targeted to compounders and creosote suppliers during standard use levels of 1000 ppm. Ghandi says this representative is a novel organic salt designed for limit alleviation in earthy and thermal properties of PP. He also confirms that Milliken has filed patents on a record and that a product has been tested for both automotive and apparatus applications. “HPN-715 provides opportunities to ascent PP to contest opposite engineering plastics, including styrenics. In terms of nucleation technologies, HPN-715 provides aloft opening over required as good as modernized nucleating agents.”

Hyperform HPN-715 nucleating record has lifted a bar for rigidity and thermal fortitude of PP, says Ghandi, observant that it was grown in response to attention final for PP with limit rigidity to residence new environmental, cost and opening challenges.

HPN-715 surpasses rival additives in several ways. First, it delivers a top rigidity accessible for PP ICPs, homopolymers and high-crystalline materials. This is adult to 10% aloft than PP with other nucleators, and adult to 30% aloft than non-nucleated PP.

Second, due to a efficacy during really low loadings, a new product avoids disastrous effects on impact performance. Traditional nucleating agents need users to scapegoat impact to benefit larger stiffness.

The HPN-715 record is also pronounced to surpass in thermal fortitude by improving a HDT of PP. Compared with other nucleators, HPN-715 enables PP to achieve HDTs that are 5-7° C (9-12.6° F) higher. Compared with non-nucleated PP, a HDT improvements are even some-more dramatic: 25-30° C (45-54°F) higher. With this boost in HDT, tools done with HPN-715 nucleated resins can withstand eager thermal conditions, generally in automotive and apparatus tools and microwavable food packaging. In automotive underhood parts, a aloft rigidity delivered by this nucleating representative can revoke loadings of potion fiber and talc to revoke weight and urge upsurge and aspect finish. Application examples embody automotive air-filter casings, battery cases and containers for windshield washer fluid.

Moreover, a aloft HDT allows ambiguous PP containers done with HPN-715 representative to softened withstand microwaving. Small appliances that beget high temperatures, such as coffee makers and electric kettles, can use high-crystalline PP extended with HPN-715 instead of some-more costly engineering thermoplastics to grasp aloft wattages or incorporate thinner-wall parts.

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