TW387022B - Load leveling yarns, webbings, seat belt comprising web and use method of web - Google Patents

Description

Α7 Β7 V. Description of the invention A typical vehicle safety seat belt system is designed to limit when the vehicle undergoes a sudden, sudden deceleration. The position of the occupant in the vehicle relative to the occupant = bit sum. See commonly-owned U.S. Patent 3,322,163. A typical chair belt system has three main parts: a retracted Pizan, a 4-zone dry belt, and a lap belt. The performance of each belt can be characterized by its force-displacement curve. The area under the force-bit test curve is called the energy absorbed by the safety restraint. Current vehicle seat belts are made from fully stretched polyethylene terephthalate (" PET ") fibers, which are partially loose (27%) and have a degree of at least 75 g / = and 14 % Elongation at break. However, there is a problem with the-term of the existing fiber. Sudden burst research shows that after the most occurrence (for example, a speed of about 35 mph), the occupant has moved forward from its position Tends until the belts engage to establish a binding force. As shown in Figure 1, a relatively unconverted belt made from PET fiber is subject to a load of at least 2000 pounds (about 9,000 Newtons) against the occupant, so that The position of the torso caused injury to the chest and ribs of the occupant, and also caused significant injuries when the occupant bounced back and impacted the back structure of the seat assembly. H, the same as the US government regulations require that the seat belt must Resistance to minus two, up to 6,000 pounds. When a car collides at a speed of 35 mph, the impact energy that people of ordinary stature receive in a car is at least 5000 joules on the torso belt. Although the current PET fiber can suck The impact energy is received, but due to the undesired force-displacement curve, injury to the vehicle occupant will still occur. Within two seconds, the average passenger will experience up to 2000 pounds (about 9,000 Newtons). ) ^ -------- 【Installation ------ Count.-(Please read the notes on the back before filling out this page) The Central Government Bureau of the Ministry of Economic Affairs Consumer Cooperatives printed the disaster λ

A7 B7 5. Description of the invention (2), as shown in Figure 1. In order to absorb the impact energy and reduce the load of the seat belt on the vehicle occupant, U.S. Patent 3,550,957 discloses a shoulder strap having a double stitched section of a mesh belt, which is arranged above the shoulder of the occupant, so the stitching allows At a controlled rate, the mesh belt is stretched downward from the shadow of the predetermined binding force from the initial length toward the last length. However, these slit tungsten sections did not give the required amount of energy absorption, did not provide a uniform response and could no longer be used. See also U.S. Patent No. 4,138,157 °, U.S. Patent No. 3,530,904 discloses a woven fabric formed by weaving two kinds of yarns with relatively different physical properties, and has proven energy absorption ability. U.S. Patent 3,296,062; 3,464,459; 3,756,288; 3,823,748; 3,872,895; 3,926,227; 4,228,829; 5,376,440; and Japanese Patent 4-Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the notes on the back before filling in this K) 257336 The belt is composed of a plurality of warp yarns having different toughness and elongation at break. This mesh belt shows multiple steps to impart and absorb shock characteristics. Those skilled in the art have noticed the lack of use of at least two different yarn types, as stated in the aforementioned references. U.S. Patent No. 4,710,423 and Japanese Laid-Open Patent Publication 298209 issued on December 1, 1989 (" Announcement 298209 ") state that when at least two different yarn types are used, energy absorption occurs in a stepwise manner, so the mesh belt will not be continuous And absorb energy smoothly. Therefore, after one type of warp yarn absorbs a part of the impact energy and before another type of warp yarn absorbs another part of the impact energy, the human body system is exposed to an undesired impact. In addition, these types of seat belts can no longer be used. U.S. Patent 3,486,791 discloses energy absorbing devices, such as roll-up devices, which are __-_ 5 _-_ This paper size applies to Chinese National Standards (CNS) A4 specifications (210X 297 mm) A7 B7 Offshore Consumer Cooperatives, Central Bureau of Standards, Ministry of Economy Imprint-6- V. Description of the invention (3 is to separate the slack section of the belt from the tightening body by the clamping device. The clamping section will reduce the clothing at a predetermined binding force to丨 Thousands of muscles gradually feed out the relaxation section, so the holding section will be elongated, allowing the restrained body to move at a typical speed. This reference also describes a device, which is: [Structure · The piece anchors the belt to the vehicle. This anchoring member is connected to the king belt and embedded in a solid plastic energy absorber. These types of mechanical devices are very expensive and can no longer be used, providing poor energy absorption. And it is difficult to control. An improvement on the former and the finished product is stated in commonly owned US patent 5,54 ^ 43 ^, which describes a load absorption retractor, including:-a rotating spool or reel ' Seat netting To the reel; and at least one movable viewing sleeve in response to a load generated during a collision condition to deform a portion of the reel 'and, in doing so, dissipate a predetermined amount of energy. US Patent 4,710,423 and Patent Bulletin 2982009 reveals a mesh belt composed of ρΕτ yarn, which has a tenacity of at least 4 g / denier and an ultimate elongation of 50% to 80%. Due to the inherent physical properties of PET yarn, So these examples show that at 5% elongation, the load has reached more than 700 kg (about 1500 pounds). The occupant was still injured by the seat belt, and therefore the belt needs to be further modified. In these two patents As an example, it also shows that if the PET yarn is excessively loosened, its tenacity will be reduced to 2.3 g / denier. The published patent publication 90717 issued on April 4, 1995, discloses high strength polybutylene terephthalate Homopolymer (" ρΒΤ ") fiber is the energy-absorbing mesh belt of the substrate. The toughness of this fiber is more than 5.8 g / denier, the elongation at break exceeds 18.0%, and the stress at 10% elongation Is less than 30 g / danny. However, this The 'test' data did not state and confirm that the PBT fiber has the standard for making the seat belt private paper suitable for the Chinese National Standard (CNS) A4 specification (2ι〇χ; 297 competition) I-: · I. I HI «^^ 1-- ---: / I-I- i —1 HI, 1 '--(Please read the notes on the back before filling out this page) A7 B7 printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (4) < The initial stress requirements to protect your users, and the device to control the initial stress barrier. It is generally expected that there is an improved energy absorption chair belt that is more researched or known to use at least two than the known stitched mesh belt. Those with different fibers have relatively smooth performance, and they are reusable, unlike the known fixture research approaches, and focus on the ability to control the initial barrier stress and impact energy absorption. SUMMARY OF THE INVENTION We have developed mesh belts that respond to the aforementioned needs in this skill. If this mesh belt is used in a seat belt, different load balancing behaviors are confirmed when a vehicle collides, ranging from about 450 sulphur (about 2,000 Newtons) to about 1,800 pounds (about 8,000 Newtons). In order to meet these requirements, the mesh belt is composed of warp yarns, and the warp yarns have a force-displacement distribution pattern, which is characterized in that when the yarn receives the initial barrier stress from about 0.2 g / denier to less than or equal to At about 1.4 grams / denier, the yarn will be stretched to less than 3%, and the initial modulus range is from about 20 grams / denier to about 150 grams / denier; (b) When the yarn acceptance is greater than the initial When the barrier stress is less than or equal to 1.8 g / denier, the yarn will be further stretched to at least about 10 percent, and the energy absorbed at elongation from 0 to 1.8 g / denier is at least about 0.0008 joules / Danny M; and (c) when the yarn is accepted to be greater than 1.8 g / denier, its modulus will suddenly increase, and the yarn will be further stretched until the yarn is at least about 5 g / denier Until the tensile strength is broken, the yarn contains multiple fibers, and all the warp yarns having substantially the same force-displacement distribution form are manufactured with glass transition temperature in the range of about _ 40 ° C to about + 70 ° C. Polymer, rather than from a terephthalate-butadiene homopolymer. This paper size is in accordance with Chinese National Standard (CNS) A4 specification (2 丨 〇 < 297 mm) (Please read the notice on the back before filling in this page) Order A7 V. Invention Description (5 B7 Economy Printed by the Ministry of Standards and Staff's Consumer Cooperatives for use in this article, modulus, rate. Figure 2 illustrates the force_displacement distribution of the yarn and mesh belt of the present invention. The initial barrier stress is shown in Figure 2. It is indicated by post. The mesh belt of the present invention is advantageous because it has a better impact on Ab θ, the team 』何 than the known stitched mesh belt or the use of at least two different fibers. Absorptivity and relatively stable performance, which can be reused unlike the known clips, wow power, Mo La · ·, Jiu Jiutuo, and the ability to control the initial P early wall stress and impact energy absorption. Other advantages will become clear from the following ^ ^ _ again, the drawings, and the scope of the attached patent application. Figure 1 shows the performance of the known pet chair strap in the torso position. Figure 2 illustrates one of the inventions Distribution pattern of force displacement of yarn and mesh belt. Example 3 shows the force-displacement distribution of the yarn. Figure 4 illustrates the force-displacement distribution of the yarn of the invention example 4 =. Figure 5 illustrates the force-displacement distribution of the yarn of the invention example 5 =. Figure 6 Demonstrate the force-displacement-energy distribution pattern of the 0.5 inch mesh belt of the invention example 6 on the high speed and blood 011 test. Figure 7 illustrates the 0.5 inch mesh belt of the invention example 7 and the batch test at high speed. The force_displacement-energy split form. Figure 8 illustrates the nature of the mesh belt in the trunk position of the invention example 8. Figure 9 illustrates the mesh belt in the trunk position of the invention example 9 Detailed description of the example 1 The word means the slope of the force-displacement curve (please read the precautions on the back before filling the page of the supplier) Order-8- This paper size applies the national standard of the country (CNS M4 specification (2! 〇X297 (Mm) A7 B7 V. Description of the invention (6) The yarn of the present invention has the following force-displacement distribution pattern: (a) When the yarn receives the initial barrier stress from about 0.2 g / denier to less than or equal to about At 1,4 g / denier, the yarn will stretch to less than 3 percent. The initial modulus ranges from about 20 g / denier to about 15 g / denier, The preferred initial modulus ranges from about 50 grams / denier to about 15 grams / denier. The initial high modulus is required for the use of the seat belt and the height of the initial barrier stress is to ensure that all your users have collision energy Will be absorbed under the subsequent load-balancing part of the force-displacement curve. (B) When the yarn is subjected to a stress greater than the initial barrier but lower than or equal to i 8 g / denier, the yarn will be further stretched to At least about 10 percent. It is preferred that the yarn absorbs at least 10,000 when the yarn is stretched from about 3 percent to at least about 20 percent, and stretched from 0 to 1.8 grams per denier. 8 Joules / Danny M. This part of the force-displacement curve is the fiber load balancing part, which will prevent passengers from passing through the load. (c) When the yarn is accepted more than a g / denier, its modulus will increase suddenly and the yarn and thread will be further stretched until the yarn breaks at a tensile strength of at least about 5 g / denier until. In the assembly of seat belts containing the aforementioned yarns, the load on the passenger's torso can be reduced to as low as 450 pounds (about 2,000 Newtons), even at a collision speed of 35 mph. As a result, the reduced force minimizes or eliminates possible injuries to passengers. This yarn is made from glass having a glass transition temperature of about -40 ° to about + 70 °, preferably about -20 ° C to about + 60 ° C, and more preferably about -100 ° C to about +40. Polymers in ° C range. This polymer may be a homopolymer, a random copolymer, a diblock copolymer, a triblock copolymer, or a segmented block copolymer. More than homogeneous ___ -9- This paper size applies Chinese National Standard (CNS) A4 specification (21〇.2 ~ 7mm) (Please read the precautions on the back 1 before filling this page),-° Economy A7 B7 printed by Deng Central Bureau of Standards Consumer Cooperatives V. Description of the invention (7 examples of materials, including polyterephthalate-diesters; and long-chain alkyl terephthalate: 2; polyterephthalic acid An example of a preferred random copolyester of isobutylene: a difluorene-formate polymer. In addition to the unit, it also contains, for example, adipic acid, including ^ ethylene terephthalate, a long-chain alkyl terephthalate. The diester unit @say, ethylene sebacate or an amount greater than 10% is present. Copolyester. This ingredient is an example of a better block copolymer, including — ^ ^ mu,, L double hydrazone, Triblock and segmented t 肷 segment overall structure. The segment copolymer is a vinegar-containing block, and at least one soft non to one hard crystalline aromatic poly-P ~ kb π π Yangbei Yue family polyester Blocks. Crystalline aromatic biased homopolymers, such as polyethylene terephthalate; polybutylene terephthalate; polybutylene terephthalate 'Polyisobutylene terephthalate' '(2,2-Dimethylmalonate terephthalate bis ((methyl) cyclohexanediacetate); Polydiethyl ethanedicarboxylate) Vinegar; polybutylene diacetate; poly [dimethylmethylnaphthalate] cyclohexanediacetate]; other poly (dicarboxylic acid) pit diesters or poly (cyclopentanedicarboxylic acid) naphthenic diesters, and mixed polyesters, this In addition to ethylene terephthalate units, mixed polyesters also contain, for example, ethylene isophthalate, ethylene adipate, ethylene sebacate, and ethylene terephthalate. Damage to methyl esters or other long-chain alkyl terephthalate units. Mixtures of aromatic polyesters can also be used. Better aromatic polyesters include PET and PEN. As for amorphous aliphatic polyester blocks It is made from lactone monomer. Ε-caprolactone is the best. In addition, propiolactone, butyrolactone, valerolactone, high-carbon cyclic lactone, and two or more lactones Type, can also be used. When using FBT, the 'amorphous aliphatic polyacetate block exists in an amount greater than 10%. -10- This paper size applies to the Chinese National Standard (CNS) Λ4 Grid (2 丨 0 × 297mm) (Please read the notes on the back before filling this page) --- Φ 丨 丨 I-n · Printing of the Central Standards Bureau of the Ministry of Economic Affairs Printed by the Consumer Cooperative A7 ___________B7 V. Description of the Invention (8) ~ Co-examined co-pending patent application number 08 / 788,895 filed on January 22, 1997 (the title is Diblock Polyester Copolymer and Manufacturing Method ), And on March 18, 1997 (the same period as the case) filed a joint co-pending part of the co-pending patent application serial number _ (the title is diblock polymer copolymer and manufacturing method) The content is incorporated herein by reference. 0. Examples of preferred diblock copolymers include the following (a) the first polyester block, where the first block is made from an aromatic polyester And (b) a second polyester block, wherein the second block is made from a lactone monomer. This aromatic polyacetate is more preferably with a natural viscosity measured in a 60/40 weight 〇 / 〇 mixture of phenol and tetrachloroethane of at least about 0.6 g / g, and a melt viscosity of ⑻ Newtonian at 280 At least about 7,000 poise at ° C. Examples of preferred aromatic polyesters include polyethylene terephthalate (" PET "); polyethylene terephthalate (, TEN ,,); polybutylene terephthalate ("; PBT "); Polybutylene dicarboxylate; poly [bis ((hydroxymethyl) cyclohexane diester)]; [[bis ((hydroxymethyl) cyclohexane diester)]; Poly (trimethylene terephthalate); poly (isobutylene terephthalate); poly (2,2-dimethyl-terephthalate); other poly (dicarboxylic acid) entertainments * — brewed or polymerized Dicarboxylic acid ring gauge * 2g purpose, and mixed polyacetic acid, in addition to ethylene terephthalate units, this mixed purpose also contains, for example, ethylene isophthalate, ethylene adipate, sebacic acid Ethylene glycol, 1,4-cyclohexyldimethylene terephthalate or other alkylene terephthalate units. Mixtures of aromatic polymers can also be used. A commercially available aromatic polyester can be used. Better aromatic polyesters include PET and PEN. The inherent viscosity of this preferred aromatic polyester is __-___- 11 -__ ^ when measured in a 60/40% by weight mixture of. 朌 and four-gas-fired ^ ^ This paper size applies Chinese National Standard (CNS) Λ4 Specifications (210X2517 mm)

{Please read the notes on the back before filling in this page J 袈. --- η A7 __B7_ V. Description of the invention (9) About 0.8 for PET and about 0.6 for PEN. Better IV is 0.9 for PET and 0.7 for PEN. Preferred lactones include? -Caprolactone, propiolactone, butyrolactone, valerolactone and high-carbon cyclic lactones. Two or more lactone versions can be used simultaneously. For use on a load-balanced chair strap, the PET-polycaprolactone diblock copolymer may have a polycaprolactone concentration of preferably about 10 to about 45 weight percent, and more preferably about 20 to About 30 weight percent. In this diblock copolymer, the polycaprolactone concentration can be changed to achieve the desired initial barrier stress and impact energy absorption, and has load balancing performance. Printed by the Consumer Standards Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the notes on the back before filling out this page) The catalyst used in the polymerization of lactones can be used for diblock copolymerization. The preferred catalysts are organometallic substances based on metals such as noodles, nanometers, sodium, tritium, cesium, cesium, and magnesium. # 5, barium, total, zinc, Ming, scandium, copper, germanium, tin, lead, Antimony, arsenic, thorium, boron, cadmium and manganese inorganic acid salts, oxides, organic acid salts and regulatory oxides; and their organometallic complexes. Better catalysts are the organic acid salts and organometallic compounds of tin, ming, and '. The best catalysts are tin dihalide, tin tetraoxide, dibutyltin oxide, dibutyltin dilaurate, tin octoate, tin tetraacetate, triisobutylaluminum, tetrabutyltitanium, germanium dioxide, and antimony trioxide. , Porphyrins of these metals and xylylene blue pigment complex. Two or more types of catalysts can be used together. Useful catalysts are commercially available. The amount of catalyst used is preferably from about 0.01 to about 0.2 weight percent, based on the combined weight of the aromatic polyester and the lactone monomer. Aromatic polyester is added to the extruder. The aromatic polyester may be melted and then added to the extruder, or the aromatic polyester may be added to the extruder and then melted in the extruder. I have found that the preferred extruder is a twin-screw extruder, and because _-12-_ this paper size applies to Chinese National Standard (CNS) A4 specifications (210X297 mm) A7 _B7 _ V. Description of the invention (1〇) It becomes feasible to mix and react the polymer melt with a substance with a sharp viscosity difference. Available twin-screw extruders are commercially available. The preferred twin-screw extruder is a reverse-type twin-screw extruder that provides a reverse intermeshing mode, and therefore, compared with other extruders, it provides good dispersion mixing, tight residence time distribution, and effective devolatilization. effect. The screw profile is designed to allow polyester pellet feeding, polyester pellet melting, lactone monomer injection, mixing, reaction, devolatilization, and final pelletization or spinning. This extruder design also allows feeding of the starting aromatic polyester melt. The most effective dispersion and distribution mixing must take place at the point where the lactone monomer is injected into the polyester melt. Printed by the Consumers' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). The initial dust emission temperature exceeds the melting point of the aromatic polyester used (measured by Perkin-Elmer differential scanning card meter (DSC)) , Obtained from scanning a 2 mg sample at 20 ° C per minute, the maximum heat sink formed by an endothermic bee). The melting point of the preferred aromatic polyvinegar is 250 ° C for PET and 266 ° C for PEN. Preferably, the initial extrusion zone temperature is at least about 30 ° C above the melting point of the aromatic polyester. Therefore, yes; the preferred initial extrusion temperature for PET is at least about 280 ° C, and the preferred initial extrusion temperature for PEN is at least about 296 ° C. In order to promote the formation of diblock copolymers and minimize the occurrence of transesterification, their residence time and extrusion temperature profile are important. After melting the aromatic polyester, the melting temperature is preferably reduced by at least about 20 ° C, and more preferably by at least about 50 ° C, because it is mixed with the injected lactone monomer and the catalyst. Preferably, the catalyst is added to the epsilon-caprolactone monomer at room temperature, and the epsilon-caprolactone monomer / catalyst mixture is injected into the melted aromatic polyester. Therefore, the reactive extrusion temperature for PET is preferably about 260 ° C, _-13 -_; __ This paper size applies to China National Standard (CNS) A4 specifications (210X297 mm) A7 B7 Central Bureau of Standards, Ministry of Economic Affairs Printed by the Industrial and Commercial Cooperatives 5. Invention Description (11 and more preferably about 230 to about 260 ° C, and the reactive extrusion temperature to PEN is preferably about 276 ° C, and more preferably about 246 to about 276. (:. The "residence time" in the extruder, as used herein, means the extruder volume divided by the output rate. Aromatic polyesters and lactones have retention times below about 30 Extrusion is carried out at a temperature sufficient to form a diblock copolymer in minutes and at a temperature. The preferred residence time is below about 15 minutes. The more preferred residence time is below about 忉 minutes, and the optimal residence time is below about 5 minutes. The short residence time minimizes the ester cross-linking effect and at the same time ensures the completion of the polymerization reaction, which means grafting the ε ,, and caprolactone monomers to form a block at the end of the pET chain and completely depleting the injected ε _Caprolactone monomer. Use a perturbator to increase extruder volume, while * sacrificing throughput rate And control the retention reaction time. In order to determine the retention distribution, 'I added colored pillars to serve as a marker for aggregated brewing granules.' The term "distribution time" means that its garden starts from the appearance of color, and Lost time ends. As the artist knows, when the distribution time and time, the product will be cut. Therefore, the better distribution time is the low distribution time, the better is less than about 2 minutes, and the best is less than Fiber formation can be achieved by spinning directly from the twin screw extruder extruder. Two types of fly solid: from a single screw # loose_. In the twin screw extruder == matches; = ... in the body, It can be used in the polymerization dissolution machine to disperse the polymer pellets with proper screw shape and processing. The polymer columns can be fed in and melted under appropriate hair conditions. Then, the grate, #, and juice are combined with the processing net and the spinning nozzle. 。In the output of the output, there are filter-pressed filaments passing through the heating sleeve, and the borrow ring (please read the note on the back before filling this page), 0 pack. 玎 0 ----- ------ DuPont Printed A7 by the Central Bureau of Quasi-Ministry of Economy, Ministry of Economic Affairs 2 ------ B7 V. Invention Description (η) , And collected by a guide roller at a certain speed. Then, the first spinning into a spring 70 is fully twisted to its maximum stretch ratio to obtain the maximum strength. Loose, 1¾ & will shrink the yarn and produce the desired Yarn of the stress-strain curve. Fiber relaxation affects the maximum load that passengers will experience in a vehicle collision. For example, using PET / 25% polycaprolactone diblock copolymer, the load that passengers experience, When the fully stretched fiber relaxes from 5% to about 1,500, it can change from about 1,500 to about 900 pounds. Depending on the intended use of the mesh belt of the present invention, additives such as UV stabilizers can be used in the fiber The term " multiple fiber " as used herein means at least two threads of the yarn, and preferably at least about 342 threads, for use in a seat belt. Seat straps typically use warp yarns having a denier of about 1000 to about 1500 and a breaking strength of at least about 5 grams / denier, and weft yarns having a denier of about 500 to 900 and a breaking strength of at least about 5 grams / denier. Weaving. The weaving conditions are selected so that the seat belt retains the stress / strain properties of the yarn and maintains the strength of the mesh belt. Our results show that the most satisfactory weaving pattern for energy absorption is a 2 X 2 twill mesh belt. The mesh belt of the present invention provides the required load balancing characteristics, in which there are no clamping devices, such as those stated in US Patent 3,486,791; stitching, such as those stated in National Patent 3,550,957; and mechanical energy absorption devices, 嬖: jointly owned by U.S. Patent No. 5,547, ^ 3 constant force retractor: the present; mesh belts and yarns provide the required load balancing characteristics, and are made from materials other than the PBT homopolymer stated in Patent No. 907Π . The mesh belt of the present invention uses warp yarns with substantially the same force-displacement distribution pattern, and iron M _ poor Wu Guozhuan ________ 15-— this paper size is applicable to China National Fresh (CNS) A4 specifications (210x297 male thin) ~~ '-___ ^ Equipment-1-(Please read the notes on the back before filling out this page) -'5 A7 _B7_ Five-, Description of the invention (13) Profits 3,756,288, 3,823,748, 3,872,895, 4,288,829 and 5,376,440 Multiple warp force-displacement distribution patterns provide the required load balancing characteristics. The mesh belt of the present invention provides the desired load balancing characteristics, and is made of a polymer other than the PET homopolymer stated in U.S. Patent No. 4,710,423 and Patent Publication No. 298209. The mesh belt of the present invention can be used for seat belts, parachute slings and cables, shoulder straps, cargo handling, safety nets, jumping beds, safety belts or slings for aerial workers, military stop belts for slowing down aircraft, and ski towing cables. Wire, and rope applications, such as for mooring yachts or mooring towers. Test procedure: Measured on an Instron equipped with two clamps that hold the yarn at a 10-inch gap length. Then, the yarn was pulled at a strain rate of 10 inches / minute. The data was recorded by a load sensor and a stress-strain curve was obtained. Toughness is the breaking strength (grams) divided by the yarn denier. The following examples are illustrative and not restrictive. Invention Example 1: Printed by Zhengong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (read the precautions on the back and then fill out this page) The dried PET pellets (IV = 0.9; MV = 15,000 poise, at 280 ° C Bottom), at a rate of 12 bangs / hour, fed into a reverse-type twin-screw extruder (diameter = 27 mm, length = 1404 mm). The length of one zone is about 4 times the diameter of the screw. The pellets begin to melt and are propelled forward by the pumping element. After the PET was melted, the pre-mixed ε-caprolactone and catalyst (tin octoate, 0.09% by weight of PET-caprolactone) were injected into the extruder by a piston pump to become a melt at a rate of 4 lbs / hour. A pusher mixer is located below the injection point. The injected liquid system quickly passes through the distribution and dispersion mixer. _-16-_ This paper size applies the Chinese National Standard (CNS) A4 specification (210 × 29 · 7 mm> A7 B7. 5. Description of the invention (14) and PET The melt is mixed. Then, the mixture of PET and ε-caprolactone is advanced into the reaction zone and the reaction is completed, and the residence time is 3.7 minutes. At the end of the polymerization reaction, the melt is degassed by emptying. The volatiles are removed. The extrusion conditions are shown in Table I. Then, the polymer melt (PET (75%)-polycaprolactone (25%)) is fed into a spinning pot containing a nozzle to form fibers, or After three holes of mold dust, it was quenched in water and cut into pellets. This double-segment copolymer has a melting point of 231 ° C, and IV = 0.98, which is confirmed to be a PET copolymerized with ε-caprolactone. Please read the notes on the back before filling out this page.) The Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs of the People's Republic of China _- 17- This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm).

AB 150 150 400 55 256 2 £ «-, ii ^ ORPM} Races are broken-) 1 292 2 292 290 290 255 260 255 250 rpm 1ϋ ^ Λ (ρ- ·) il ^ J: (^ ' h ^) (s 60 -1000 16 90 丨 750 5 245 250 240 245 240 245 235 240 Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs iffff-^ " 3.7 12 235 240 235 240 i 考 蛇-^ 今 ^ ( Geum Chan) 235 252 235 242 235 240 Lang ficc) gfrc) Ifcc) If 3 nfcc) 5-3 5-735-s) ^ sd) s-10cc) gfll3gfl23g, 13cc) (Please read the precautions on the back before filling (This page) This paper size is in accordance with Chinese National Standard (CNS) A4 (2i × 297mm) A7 B7 Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (16) Table Π Examples of invention Vinegar (%) Unreacted ε-. Caprolactone (%) Intrinsic viscosity of diblock copolymer (common / g) Vinegar exchange in diblock copolymer (%) 1 25 0 0.98 • 5 2 15 0 0.94 6 Invention Example 2: Feed the dried PET pellets (IV = 0.9; MV = 15,000 poises at 280 ° C) at a rate of 4.26 lbs / hr into a reverse twin-screw extruder (Diameter = 27 mm; length = 1404 mm) .. The pellets begin to melt and are propelled forward by the pumping element. 'After PET was melted, pre-mixed ε-caprolactone and catalyst (tin caprylate, 0.03% by weight of PET-caprolactone) were injected into the extruder by a piston pump at a rate of 0.75 lbs / hour. The amount of ε-caprolactone in PET is 15% by weight. The injected liquid system was quickly mixed back and forth with the PET melt by means of a dispensing and dispersing combing mixer, which was installed below the injection port area. The ε-caprolactone system “promotes the melt of PET and reduces the melting temperature of PET to 225. . . The mixture of PET and ε-caprolactone was advanced into the reaction zone. The perturbation in the reaction zone is between the perturbator and the electric heating cylinder, and the 61% extruded volume is adjusted. The total extruded volume and throughput rate (5.0 liters / hour) indicate a residence time of approximately 12 minutes. The melt in the polymerization process is under the continuous stirring and homogenization of the interlocking perturbators. At the end of the polymerization reaction, the PET-polycaprolactone copolymer melt was fed into a devolatilizing zone under a vacuum (-750 mbar). The extrusion conditions are _- 19 -_ This paper size is applicable to Chinese National Standard (CNS) A4 (210 X 297 mm) -------- install ----(Please read the note on the back first Please fill in this page again) Order A7 B7 V. Description of the invention (17 in Table I. Then, pass the polymer (tetrabutyl (85% > polycaprolactone (15%)) through three ----- -IkI.. '(Please read the precautions on the back before filling in this page. J-die extrusion, quenching in water and cutting into pillars. This diblock copolymer has a melting point of 227Ό, and IV = 0.94, which confirms It is a PET copolymerized with ε-caprolactone. For each of the following examples, the formation of pET / polycaprolactone fiber is achieved by spinning from a single screw extruder. This method includes extruding, Spinning, drawing, and relaxation stages. Single polymer screw extruder with polymer pellets fed into a Γ fine dish (L / D = 30 :), equipped with a long metering zone to melt the end of the extruder The stabilizing screw of the body pressure. The inverse temperature distribution pattern is selected to completely melt the column particles in the first and second zones, reduce the melting temperature, and pump them to the spinning tank. Before, the melt viscosity was increased. The spinning pot contains a screen combination and a nozzle with 25 circular holes (0024 " χ 〇〇72 "). The extruded filaments are advanced through a heating sleeve, '5 meters Thanks for quenching. Then, the yarn is collected in the spinning line agent and the guide roller is collected at a fixed speed to form a package. Then, the newly spun yarn is completely stretched to its maximum under different conditions. Stretch ratio. Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. Then, the fully stretched yarn is relaxed at high temperature to produce a fiber with the desired stress-strain curve. | _ 明 例 3: Polymerization The body pellets (Inventive Example i, PET / 25% polycaprolactone) were dried and fed into an extruder having a temperature distribution profile shown in Table m. In the machine, the screw speed was 46 RPM. The electrothermal conditions were obtained for the extruding conditions. The cylinder pressure and spinning tank pressure are 1200 pSi and 50 psi, respectively. The first-spun yarn has 25 filaments and 1650 denier, is stretched under the condition a in Table IV, and has a tenacity of 78. G / Denny this paper size applies to China's national standard also--pn-

I ¾ A7 B7 Printed by the Consumer Cooperatives of the Central Trace Bureau of the Ministry of Economic Affairs 5. Description of the invention (π>. The fully stretched yarn is 200 deniers, with a melting temperature of 224 °. Then, it will be fully stretched The yarn was fed to the first roller at a temperature of 300 m / min and moved to the second roller at 13 yc. The contact time was 1 second and the shrinkage was 15% at room temperature. It is quenched on the drum and sent to the winding device. The slackened yarn has 230 denier. The stress-strain curve of this yarn (PET / 25% polycaprolactone) is shown in Figure 3. When this When the yarn received the initial barrier stress of 0.06 g / denier, the yarn series was stretched to less than 2%, and the initial modulus was 52 g / denier. When the yarn spring was accepted from 0_6 g / denier to ι · At 8 grams / denier, the yarn is stretched from 2% to 20%, and the energy absorbed from 0 to 20% is 0.00174 Joules / denier · m. When the yarn is accepted greater than 18 grams / denier Nissei 'its modulus suddenly increased and the yarn stretched from 20% to 31%' until the yarn broke at a tensile strength of 5.8 g / danny Inventive Example 4: Dry polymer pellets (Inventive Example 2, PET / 15% polycaprolactone) and dry the silver into an extruder with the temperature-stabilizing form shown in Table II [, its screw speed It is 40 RPM. The conditions of the electric heating cylinder and the spinning pot are respectively 800 psi and 400 psi under the conditions of exit. Then, the as-spun yarn is stretched under the condition b in Table 1 and obtained with toughness. The fiber is 6.5 g / denier. The fully stretched yarn is 259 denier with a melting temperature of 220 ° C. The fully stretched yarn is fed to the chamber at a speed of 300 m / min. The first roller at the temperature is moved to the second roller at 150 ° C, the contact time is 1 second and the shrinkage is 10%. It is quenched on the roller at room temperature and sent to the take-up device-21-this The paper size is applicable to China National Standard (CNS) A4 (210X 297). (Please read the notes on the back before filling this page.) Order the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives, India A7 ------ ----- B7 V. Description of the invention (19) Please refer to the stress-strain curve of yarn (pET / 15% polycaproline) in Figure 4 Figure 4 shows the initial barrier stress required by π. If this fiber is further relaxed to a total of 15%, other desired properties of the inventive fiber can be achieved. In a manner similar to that described above, a diblock polymer (PET) is prepared (70% >. polycaprolactone (30%)). The polymer pellets PET / 30 ../ polycaprolactone) were dried and fed into an extruder having a temperature distribution profile shown in Table II. The screw speed is 42 RPM, and the electric heating cylinder pressure and spinning tank pressure obtained under the extrusion conditions are 900 psi and 500 psi, respectively. Then, the as-spun yarn was twisted under Condition c in Table Han, and a fiber having a degree of 5.9 g / denier was obtained. The fully stretched yarn was 271 denier, with a melting temperature of 22 ° (rc.). The above fully twisted yarn was at a speed of 300 m / min from silver to the first roller at room temperature. , Move to 150. (: on the second roller below, its contact time is 1 second and shrink 100 /., It is quenched on the roller at room temperature and sent to the winding device 0 About this yarn (PET / The stress-strain curve of 30% polycaprolactone) is shown in Figure 5. When the yarn received the initial barrier stress of 0 g / denier, the yarn was stretched to less than 2%, and the initial mold The number is 20 grams / denier. When the yarn is accepted from 0.2 grams / denier to less than or equal to 1.8 grams / denier, the yarn is stretched from 2% to 14%, and from 0 to 14%. The absorbed energy is 0.00096 Joules / Denny. When the yarn is accepted to be greater than 18 grams / Denny, its modulus suddenly increases, and the yarn is stretched from 14% to 26% until the yarn is at 5 grams / Danny's tensile strength until the meal is stopped. ____ -22-_ This paper size applies to China National Standard Soap (CNS) A4 specifications (210X297 mm) --------- Φ丨---(Please read the notes on the back before filling in this page j. V. Description of the invention (20) a. Bc δ 4 ^ 0 30 7 7 7 140 150 160 140 90 160 sv Αβ Jt, pants ^ ίβ (d) cc) cc)) — ») — * t—iooos 7.7 7 夂 # -ja-vrt A7 B7 Ον Ο ΟPrivate q to κ * to α > O --4 NJ Κ) ON V〇 ^

oo y 4 ^ »〇〇 〇 to K) ¢ ^ ^ On O h- ^ O

Ch < ϊ O) -4 CTn on to to 1— ^ 〇〇oo 3 3 3 Printed by the Consumer Cooperatives of the Central Standards Bureau, Ministry of Economic Affairs ^ Hi t〇OO OO 00 i ¥ §3 (ο) (》 ν 余 / ¾) (¾ Click here) > 111 -23- This paper size applies to Chinese National Standard (CNS) A4 (210X 297 mm) (Please read the precautions on the back before filling out this page)

A7 B7 V. Description of the invention (21 Love: Ming Example 6: Based on the choice of 2X2 twill weaving pattern, 1400 denier PET / 25% polycaprolactone warp yarn obtained from 91 threads of Invention Example 3 ', Weaving with 840 denier PKK / 25% polycaprolactone weft into 1 / 2-inch strips. The samples were placed on a high-speed Instron at a load rate of 2200 inches / minute with a gap length of 3 inches. Test. This is equivalent to a car crash at a rate of 35 mph. Figure 6 shows that under a load of up to 250 pieces, the mesh belt is stretched to 20% strain and 11.4 joules of energy are absorbed. This is equivalent to being applied at Before the load on the passenger was increased to 1,000 pounds, 663 Joules were absorbed by the torso seat belt (50 inches long and 2 inches wide). Invention Example 7: I2 inch PET / 25% from Invention Example 6 Polycaprolactone mesh belt (1/2 inch to width) was loaded on the frame, soaked in a red bath for 10 minutes. Then, the mesh belt with a 30% wet adhesion amount was Dry for 3 minutes' and drip dry for another 3 minutes at 120 C. Finally, cool the dyed mesh belt dish to room temperature. Pull the warp and weft yarns from the mesh belt The fiber was analyzed under an optical microscope. It clearly shows that the warp and weft fibers are evenly and deeply dyed. The smallest shrinkage rate (& 2%) from the original size was found. The fast-speed Instron test on the printed ribbons of the employee consumer cooperative is shown in Figure 7 and compared with the unstained sample. These results show that the load balancing behavior is preserved in the dyeing program. In the sled test, the system Assemble a full-size woven seat belt (2 inches wide) into a cassette with belt winding and locking functions. Then, install this combination into a car and install a load sensor to measure the force on the seat belt -24- (Please read the precautions on the back before filling out this page) The scale of the paper is applicable to China National Standard (CNS) A4 (210X297 foot) ———-——__ B7 'Fifth, the description of the invention (22) Comparative Example A: The upper line of the test of the bureau at 35 mph, bring the dummy (50th percentile mixed) with 2 inch. Inch wide PET seat belt. When simulating the accident of Yi Erbu, the load on the cingulate belt reached the peak at 70 milliseconds after the collision. Take a large recording force of 920,000 Newtons (2,070 pounds in the trunk position as shown in Figure 1). Shown in Love Example 8: The dagger will be obtained from Inventive Example 3, 1500 deniers pET / 25% polycaproetin, warp, to obtain inventive Example 3, 500 deniers pET / 25% polycaprolactone weft ^, 2X2 twill weave into a 2-inch wide seat belt. Test the chair belt with a dummy (hundredth knife number mixed). The force reaches the highest at 35 mph The peak time was delayed to 100 milliseconds after the collision. The maximum measuring force is 5700 Newtons (1280 lbs) at the torso position. As shown in Figure 8, this novel mesh belt performs very well, and shows that the load balancing behavior at 5,7 Newtons is similar to that in Figure 1. The undesired performance of Comparative Example A is in stark contrast. Example 9: The dagger will be obtained from 1500 denier pET / 25% polycaprolactone of the 342 threads of the invention example 3, and 500 denier PET / 25% polycaprolactone obtained from the invention example 3 Weft yarns are woven in a 2X2 oblique pattern and woven into a 2-inch wide seat belt. This novel mesh belt was cut to have a retractor and torso length, and then pET: then, oversized dummy (95th percentile mixed) was brought on:, woven into the sleigh test. At 35 mph, the time at which the force at the trunk reached the highest peak was delayed to 100 milliseconds after the collision. The maximum measuring force is 6,800 Newtons (1530 pounds) at the trunk position. As shown in Figure 9, this paper size applies the Chinese National Standard (CNS) A4 specification (plus X tear off the public holiday). * (Please read the precautions on the back before filling in this page)

A7 B7 V. Invention Description (23) This novel network belt performs very well and shows that the load balancing behavior is under 6,800 Newtons, which is in sharp contrast to the unexpected performance of Comparative Example A in Figure 1. '(Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs -2β-This paper size applies to China National Standards (CNS) Α4 size (210 × 297 mm)

Claims (1)

ABCD VI. Patent Application Fanyuan 1, a yarn with a force-displacement distribution pattern, so that (a) when the yarn receives the initial barrier stress from about 0.2 g / denier to less than or equal to about 1.4 g / Denier, the yarn will be stretched to less than 3%, and the initial modulus will range from about 20 g / denier to about 150 g / denier; (b) when the yarn is accepted larger than the initial barrier When the stress is less than or equal to 1.8 g / denier, the yarn will be further stretched to at least about 10 percent, and the energy absorbed at elongation from 0 to 1.8 g / denier is at least about 0.0008 Joules / Danny Meter; and (c). When the yarn is accepted to be greater than 1.8 g / Danny, its modulus will suddenly increase and the yarn will be further stretched until the yarn is at least About 5 grams / danny until the tensile strength is broken, wherein the yarn contains multiple fibers 'all the fibers have substantially the same force-displacement distribution form', which is made from glass with a glass transition temperature of about _4. Polymers in the range of T to about + 70 ° C, rather than made from polybutylene terephthalate homopolymer. 2. The yarn according to item [of the patent application park], wherein the yarn is stretched to less than about 2% in part of the concrete. 3. The yarn according to the first patent application, wherein the yarn is made of self-regulating copolymers, such as regular copolymers, diblock copolymers, triblock copolymers, and segmented block copolymers. Thing. '4.2 The yarn according to the scope of the patent application, wherein the yarn is made from the diblock copolymer, triblock copolymer or segmented block copolymer, including: -© Note_ Notice Printed by the Consumers' Cooperative of the Central Government Bureau of the Ministry of Economic Affairs A8 B8 C8 D8 The scope of patent application is at least one of the first polyester blocks, where the first block is aromatic, and up to V brother-polyester blocks, where the second funnel segment is vinegar single. body. Patent Yarn of Item 4 in which the aromatic polyester is selected from polyethylene terephthalate, polyethylene terephthalate, polymethylene diester, and polymethylene naphthalate. 2. Polybutylene terephthalate and polytrimethylene terephthalate. It is called the yarn of the scope of the patent No. 4, wherein the lactone polymerization system includes the yarn of the patent scope No. 4 including the ε-caprolactone, propiolactone, butyrolactone and valerolactone, wherein the inner The ester polymer is selected from about 10 to about 45 weight percent to achieve the desired wall stress and impact energy absorption, and has load balancing performance 8 :, a kind of mesh belt containing warp yarn, warp yarn contains according to the scope of the patent application The first item of the line is less. 9. ——Seat belt, which includes the mesh belt according to item 8 of the scope of patent application. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (a) Made from (b) Made from 5. Includes 1 formic acid diester according to the application and 6. Selects monomers according to the application. 7 · According to the amount of application in the first obstacle -------- φ ~ equipment —--(Please read the precautions on the back before filling out this page) Order _ 10. —Bound vehicle occupation in the event of a collision The method includes the following steps: using a shock energy absorption and load balancing mesh belt, which is about 450 lbs (about 2,0 Newtons) to about i, 8 lbs (about 8, Newtons) force, Bound child car occupants and include mesh belts according to item 8 of the patent application 0 -28