(12) Patent Application Publication (10) Pub. No.: US 2016/0017115 A1 Fatta (43) Pub
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US 2016.0017115A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2016/0017115 A1 Fatta (43) Pub. Date: Jan. 21, 2016 (54) LIQUID COLOR CONCENTRATE FOR USE Publication Classification N PARTICLE ARTICLES (51) Int. Cl. (71) Applicant: Badger Color Concentrates, Inc., CSK5/00 (2006.01) Mukwonago, WI (US) CSK5/2 (2006.01) C08.3/20 (2006.01) (72) Inventor: Mike Fatta, Mukwonago, WI (US) CSK 3/00 (2006.01) (52) U.S. Cl. (21) Appl. No.: 14/868,774 CPC ............. C08K 5/0016 (2013.01); C08K 3/0033 1-1. (2013.01); C08K 5/0041 (2013.01); C08K 5/12 (22) Filed: Sep. 29, 2015 (2013.01); C08.J3/203 (2013.01); C08J Related U.S. Application Data 2367/02 (2013.01) (63) Continuation of application No. 13/891,714, filed on (57) ABSTRACT May 10, 2013. A liquid color concentration for use in plastic articles com (60) Provisional application No. 61/645,275, filed on May prises a non-orthophthalate plasticizer and at least one of a 10, 2012. colorant, a functional additive or a special effect pigment. --- r N .. ...-- . N - ...tr-- ---. * -- 's 's 's 's 's --- s - *-S.. % s : % SR RS -. s - Y- s --- '' 3. s '' i. R.-- :.' Patent Application Publication Jan. 21, 2016 US 2016/0017115 A1 r k ------------------.S.s s -8. r is sc sy clic : S. x-a-a-a-a-a-a-a-a-a-a-a- St. US 2016/0017115 A1 Jan. 21, 2016 LIQUID COLOR CONCENTRATE FOR USE DETAILED DESCRIPTION N PARTICLE ARTICLES 0012. The present disclosure relates generally to the use of RELATED APPLICATION a liquid color concentrate for use in plastic articles to impart a desired visual and/or physical effect, such as a process 0001. This application claims the benefit of U.S. Provi additive, a UV additive and/or color. One aspect of the present sional Patent Application Ser. No. 61/645,275, filed May 10, disclosure includes a liquid color concentrate comprising a 2012, the entirety of which is hereby incorporated by refer non-orthophthalate plasticizer and at least one of a colorant, a ence for all purposes. functional additive or a special effect pigment. Advanta geously, the non-orthophthalate plasticizer of the present dis TECHNICAL FIELD closure is highly compatible with certain polymer resins used to form plastic articles, such as polyester articles (e.g., 0002 The present disclosure relates generally to the use of bottles). Historically, ortho-phthalates have been used as a liquid color concentrate for use in plastic articles to impart plasticizers for polyvinyl chloride (PVC)-based products, as a desired visual and/or physical effect, Such as a process well as liquid color carriers for PVC and polyethylene tereph additive, a UV additive and/or color. thalate (PET)-based products. The fact that the liquid color concentrate of the present disclosure does not include raw BACKGROUND phthalates, which have been associated with human infertility (e.g., lowered sperm count) is advantageous for reproductive 0003 Plastic has taken the place of other materials in a variety of industries. In the packaging industry, plastic has health reasons and, thus, provides the public with a safe replaced glass to minimize breakage, reduce weight, and alternative to ortho-phthalate with certain polymer resins reduce energy consumed in manufacturing and transport. In (e.g., PET). other industries, plastic has replaced metal to minimize cor 0013. In one aspect of the present disclosure, the liquid rosion, reduce weight, and provide color-in-bulk products. color concentrate includes colorant. The colorant can be any 0004 Attracting consumers to purchase individually combination of one or more additives, pigments, and/or dyes. sized or family-sized containers includes branding and trade The choice of colorant is dependent upon the desired color, dress. Among the elements of valuable trade dress is the color the machine process, molding temperature, and the end-use of the plastic article. Moreover, such color may need to co of the plastic article. exist with translucency, transparency, or other special effects 0014. The science of coloris well knownto those skilled in for the plastic container. the art. Without undue experimentation, one can use color matching techniques to identify a particular location in SUMMARY spherical color space. For example, one skilled in the art can digitally map color space using specific polymer carriers and 0005 According to one aspect of the present disclosure, a colorants as raw material ingredients. Alternatively, one can liquid color concentrate for use in plastic articles is provided. make Small samples (i.e., plaques) for visual review. The liquid color concentrate comprises a non-orthophthalate 0015 Colorants are commercially available from a num plasticizer and at one of a colorant, a functional additive or a ber of sources well known to those skilled in the art. Com special effect pigment. mercially available pigments are well known to those skilled 0006 Another aspect of the present disclosure can include in the art and include organic and inorganic colorant chemis a liquid color concentrate for use in coloring plastic articles. tries. Additionally, commercially available dyes are well The liquid color concentrate can comprise an amount of 1,4- known to those skilled in the art and include all organic bis(2-ethylhexyl)benzenedicarboxylate and at least one of a chemistries. Commercial sources for pigments and dyes colorant, a functional additive or a special effect pigment. include multinational companies, such as BASF, Bayer, 0007 Another aspect of the present disclosure can include Color-Chem International, Sun Chemical, and Zhuhai Sky a liquid color concentrate for use in coloring a polyester high Chemicals. article. The liquid color concentrate can comprise an amount 0016 Table 1 lists eight commercially available pigment of 1,4-bis(2-ethylhexyl) benzenedicarboxylate and at least colorants in a variety of primary and secondary colors. one of a colorant, a functional additive or a special effect pigment. TABLE 1 BRIEF DESCRIPTION OF THE DRAWINGS Commercial Pigment Colorants Raw Material 0008. The foregoing and other features of the present dis Name CI Name Family COLOR. FDA closure will become apparent to those skilled in the art to TIOXIDE PIGMENT INORGANIC WHITE Y which the present disclosure relates upon reading the follow R-FC6 WHITE WHITE 6 ing description with reference to the accompanying drawings, REGAL 66OR PIGMENT ORGANIC N in which: BLACK BLACK7 POWDER 0009 FIG. 1 is an image showing the chemical structure of MPC CHANNEL PIGMENT ORGANIC Y polyethylene terephthalate: BLACK BLACK7 0010 FIG. 2 is an image showing the chemical structure of HELIOGEN PIGMENT ORGANIC BLUE Y BLUE K7090 BLUE 15:3 poly(ethylene 2,6-naphthalate); and HELIOGEN PIGMENT ORGANIC BLUE Y 0011 FIG.3 is an image showing the chemical structure of BLUE K6903 BLUE 15:1 1,4-bis(2-ethylhexyl)benzenedicarobxylate. US 2016/0017115 A1 Jan. 21, 2016 TABLE 1-continued relatively straightforward for a skilled color matcher, even if a few iterations are required to satisfy the customer. Commercial Pigment Colorants 0020. The concentration of the colorant(s) in the liquid Raw Material color concentrate is significant for several reasons, such as the Name CI Name Family COLOR. FDA relative cost of the colorant ingredient(s), the need for colo rants to be evenly distributed and dispersed throughout the 34L2OOO PIGMENT INORGANIC BLUE Y AZURE BLUE BLUE 28 liquid color concentrate, and that the liquid color concentrate SICOTAN PIGMENT INORGANIC YELLOW Y have a stable and pourable viscosity, all for consistent and YELLOW BROWN 24 precise addition (letdown) of the liquid color concentrate with the polymer resin during the formation of pre-form bottles or SICOTAN PIGMENT INORGANIC YELLOW Y YELLOW YELLOW 53 other polyester articles. Letdown ratios can depend upon the K 1011 concentration of colorant(s) and/or additives in the liquid color concentrate and whether the final molded product or *As published by the commercial producer, article is intended to be opaque, translucent, or transparent. 0021. The concentration of colorant after letdown into the 0017 Table 2 shows fourteen commercially available final molded product or article can range from about 0.05 to dyes. about 0.2 weight percent, and preferably from about 0.1 to about 0.5 weight percent. TABLE 2 0022. In another aspect of the present disclosure, the liquid color concentrate can be molded with a polymer resin. Suit Commercial Dye Colorants able polymer resins can comprise a homopolymer or copoly Raw Material mer containing at least one ester functional group in its main Name CI Name Family Color FDA chain. For example, a polymer resin can comprise one or Lambdaplast Solvent Anthraquinone Blue N more polyesters. Polyesters can be made in the form of a Blue NL Blue 59 thermoplastic or a thermoset. Macrolex Solvent Anthraquinone Blue N Blue RR Blue 97 0023 Suitable polyesters can have an average molecular Granular weight ranging from about 100 to about 65000, and prefer Macrolex Solvent Anthraquinone Green N ably from about 150 to about 8000, and most preferably about Green G. Green 28 192 (i.e., a PET monomer). Granular Macrolex Solvent Anthraquinone Green N 0024. The polymer resin can have a glass transition tem Green SB Green 3 perature ranging from about -15° C. to about 100° C. and Granular preferably from about 10° C. to about 80° C., and most Macrolex Disperse Polymethine Orange N. preferably about 76°C. (i.e., the glass transition temperature Orange R Orange 47 Granular PET). Macrolex Solvent Perinone Orange N. 0025 Non-limiting examples of polyesters can include Orange 3G Orange 60 PET (FIG. 1), glycol-modified polyethylene terephthalate Granular (PETG) poly(ethylene 2,6-naphthalate) (PEN) (FIG. 2), Macrolex Solvent Perinone Re N Red EG Red 135 polytrimethylene terephthalate, polybutylene terephthalate, Granular polyglycolic acid, polylactic acid, polycaprolactone, polyeth Macrolex Solvent Perinone Re N ylene adipate, and polyhydroxyalkanoate.