Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
  • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
  • C08L23/10—Homopolymers or copolymers of propene
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L2205/00—Polymer mixtures characterised by other features
  • C08L2205/22—Mixtures comprising a continuous polymer matrix in which are dispersed crosslinked particles of another polymer
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L97/00—Compositions of lignin-containing materials

Definitions

• the invention is related to the plastic matrix based composites with high level of f ⁇ llament as well based on them articles manufacturing with plastic injection molding technologies in combination with gas or gas—liquid injection support method, including plastic co-injection method used.
• This method is especially suitable for such an articles manufacturing as pallets, one-piece chairs, boxes, body parts of the automotive, large size cable bobbins, other products manufacturing where low weight, high mechanical properties, aesthetic design and high requirements to the ecological aspects of the articles are demanded- their recyclability, biodestruction, reduced energy consumption in their manufacturing process.
• the invention is related as well to innovative receptions of the composites, which are usable without above mentioned gas or gas-liquid assisted injection molding method used, and are usable for the articles manufacturing by using standard plastic injection molding technology.
• (OOlO)Patent CN 1837277 is protecting inorganic nanoparticles and plastic- woodfibers composites with recepie: 24-98 % plastic, 0-70 % organic fibers, 1-30 % inorganic nanoparticles.
• (OOll)Patent CN 1850900 is protecting a composite: 100/25 -100/170 parts of the weight polyprophylene-woodfibers mixture, 1-40 parts of the weight nanometric density intensificator, 0-10 parts chlorinated polyethylene, 1.0-3.0 antioxydant, 0.5-3.0 parts polyethylene vax, 0.5-3.0 parts stearine acid , and 2.0-10% nanometric density dispersion agent/.
• Patent US 7151125 is protecting polymer-cellulosic fibers composite, which consist from polymer-cellulose fibers composition, where from 30 to 70% is usded polymer, from 70 to30%-cellulose fibers and 1 to 7% lubricant.
• the fibers are piling and blocking, as well absorbing the gas or gas-water presure,
• plastic injection molding technology and high ( 40-65%) fillament level compond materials , including such a type which are biologically diestructing and contain natural fibers-flax,cotton, hemp,woodfibers e.t.c, and thermoplastic compounds (monomeres, ologomeres or polymer compositions) as couplers for different articles manufacturing, in combination with plastic co-injection include ;
• Plastic and gas or liquid co-injection method is realized in a way as until the composite mass is still viscosous in locations of the article channels , but the part of the composite mass near the mold inner surface has been already crystalized, the plastic co- injection is performed, by immediate following gas injection after it. If to use Gas -liquid assisted injection, immediate after snail amount of the gas injected, the liquid is to be injected. As the result of gennerated pressure by gas or gas/liquid the plastic together with still non-cry stalized composite is pushed longitudinally forward the channel. In a such of way, the co-injected plastic is forming the backing layer.
• the method in adition increase the tenacity of the articles as the plastic layer in hollow chanels is performing as sandvich, and is preventing the porous character of inner surface of the hollow channels (which weaken the physical-mechanic properties of the article).
• (0033)offered composites are providing possibility the articles to form even at +80/+85 degrees Celsium hot molds , as the crystallization of the materials begins at temperature +125/+130 0 C , resulting to shortened manufacturing cycle time and consumption of energy ( to compare , it is to be noted that polyprohylene and polyethylene traditionally is formed in + 30 0 C hot molds, and the cooling time is much longer nor organic fibers filled composites);
• FIG.5 where schematically is shown the constuction of the tare box , there are used following notations: (8)- basic corpey of the article, (9i)-hollow reinforcement ribs,(13)- plastic and/or gas and/or liquid possible co-injection alocation;
• mentioned fibers can particularly or in full to replace flax, sizal, hemp and other such a kind of fibers usage in mentioned composites, in lieu of it using woodfibers, straws and other low cost fibers.

Landscapes

• Chemical & Material Sciences (AREA)
• Health & Medical Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Organic Chemistry (AREA)
• Injection Moulding Of Plastics Or The Like (AREA)
• Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
• Compositions Of Macromolecular Compounds (AREA)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

Country Status (2)

Cited By (2)

Citations (3)

• 2007
  • 2007-07-30 LV LVP-07-87A patent/LV13891B/lv unknown
• 2008
  • 2008-07-30 WO PCT/LV2008/000005 patent/WO2009017387A2/en active Application Filing

Patent Citations (3)

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